I'm a gay male gamer, convince me a lack of diversity in games is a good thing. Is that a good thing, for me? Surely you are aware that just because games like Gone Home exist doesn't mean other games aren't being developed; games are made by many companies, not one, and chances are if the company is choosing to develop something like Gone Home they're not putting a AAA Call of Duty like title on hold for it, so there's pretty much no impact on you for it existing. Pretty much the same with all such things, really - from games exploring LGBT themes, to characters, to romance options and all that. If the diversity exists, it almost certainly didn't come at the expense of anything else (unless you're Ubisoft and you're attempting to make playable female characters). So you don't lose anything for it existing. But diversity adds options that, whilst not of any interest to you, are of to other people; when you're part of a minority, representations of people like you tend to be far and few between, and thus they become more important when they do happen. And some people are curious how 'the other people' live too.
Imagine a world where if every game you could only play as a black woman on a quest to save her scantily clad boyfriend (assumedly because black women are seen as the majority in this world); sure, you don't mind it that much because it's 'the norm', you love games and are used to it, but at the same time you can't relate as well because you're not a black woman yourself, and you don't really have an interest in seeing a scantily clad male because you like chicks. Now, imagine that same world, a game comes out that allows you to play as a white guy romancing/trying to rescue a chick. Woah - unexpected, but kind of cool that exists because it's finally representing something closer to who you are. Then more games like that come out, discussions of white people as protagonists in gaming comes about, games exploring what it can mean to be a white man...all interesting, and it feels like the industry you love is starting to acknowledge people like you exist. Sure there's some people out there who complain, going off the notion these things are somehow 'ruining games' (despite the fact there are still hundreds of games with black female protagonists), but they're idiots so who cares. But you see some people pose questions like 'As a black woman, how does diversity benefit me?' and you can't help buy wonder why it even matters to them in the first place, because it's not really something that affects them. I think you can see what I'm getting at.
Theoretically, diversity in games can open dialouge and educate - it can show people the realities of what its like being someone else, something everyone should learn regardless of who you are. Through inclusion, and education by this inclusion, assumption, misunderstanding, and ignorance can only lessen as people experience and humanise people different from them's existance. So that's always a benefit and one that, going off all the discussion and support from straigt folk in regards to burgeoning gay options, is defiantly happening. You're not required to look into it, but it's an option available to you if the diversity is there - and more options are always good.
But ultimately, diversity in games isn't really for those represented by 'the norm' in gaming, because they'll usually just play as something close to themselves anywayif provided options (though I'm sure some out there occassionally like to roleplay as something completly different now and then). Diversity in games is for the diverse; those who often are not represented, and extending the same opportunities available to the majority. It's giving them options that cater to how they are, providing representation to make them feel more a normal part of society, and exploring themes more relevant to them. So I suppose realistically the answer to your question is 'Diversity in games doesn't really benefit you a whole lot, but that's because it's not really supposed to anyway'.
All that being said, the addition of diversity doesn't detract from your own gaming opportunities and experiences; the only thing closest I could envision to that being the case is in DA2 when Anders hits on you and you're forced to tell him you're interested or 'gay people are yuck', which was incredibly stupid. The games, options and themes you enjoy and relate to will still be around. Anyone calling straight male gamers 'DudeBroGamers' are asshats and are best to be ignored; as are any notion that due to the addition of things like Gone Home, Call of Duty is suddenly going to vanish. They aren't, because they'll always be a market for it - and gamers of all genders, races and orientations dig those things. As I said earlier, options are good - let's have a lot of them.
Imagine a world where if every game you could only play as a black woman on a quest to save her scantily clad boyfriend (assumedly because black women are seen as the majority in this world); sure, you don't mind it that much because it's 'the norm', you love games and are used to it, but at the same time you can't relate as well because you're not a black woman yourself, and you don't really have an interest in seeing a scantily clad male because you like chicks. Now, imagine that same world, a game comes out that allows you to play as a white guy romancing/trying to rescue a chick. Woah - unexpected, but kind of cool that exists because it's finally representing something closer to who you are. Then more games like that come out, discussions of white people as protagonists in gaming comes about, games exploring what it can mean to be a white man...all interesting, and it feels like the industry you love is starting to acknowledge people like you exist. Sure there's some people out there who complain, going off the notion these things are somehow 'ruining games' (despite the fact there are still hundreds of games with black female protagonists), but they're idiots so who cares. But you see some people pose questions like 'As a black woman, how does diversity benefit me?' and you can't help buy wonder why it even matters to them in the first place, because it's not really something that affects them. I think you can see what I'm getting at.
Theoretically, diversity in games can open dialouge and educate - it can show people the realities of what its like being someone else, something everyone should learn regardless of who you are. Through inclusion, and education by this inclusion, assumption, misunderstanding, and ignorance can only lessen as people experience and humanise people different from them's existance. So that's always a benefit and one that, going off all the discussion and support from straigt folk in regards to burgeoning gay options, is defiantly happening. You're not required to look into it, but it's an option available to you if the diversity is there - and more options are always good.
But ultimately, diversity in games isn't really for those represented by 'the norm' in gaming, because they'll usually just play as something close to themselves anywayif provided options (though I'm sure some out there occassionally like to roleplay as something completly different now and then). Diversity in games is for the diverse; those who often are not represented, and extending the same opportunities available to the majority. It's giving them options that cater to how they are, providing representation to make them feel more a normal part of society, and exploring themes more relevant to them. So I suppose realistically the answer to your question is 'Diversity in games doesn't really benefit you a whole lot, but that's because it's not really supposed to anyway'.
All that being said, the addition of diversity doesn't detract from your own gaming opportunities and experiences; the only thing closest I could envision to that being the case is in DA2 when Anders hits on you and you're forced to tell him you're interested or 'gay people are yuck', which was incredibly stupid. The games, options and themes you enjoy and relate to will still be around. Anyone calling straight male gamers 'DudeBroGamers' are asshats and are best to be ignored; as are any notion that due to the addition of things like Gone Home, Call of Duty is suddenly going to vanish. They aren't, because they'll always be a market for it - and gamers of all genders, races and orientations dig those things. As I said earlier, options are good - let's have a lot of them.