I don't think video games have an obligation to be anything, but it's nice if they give their customers what they want.
And the vast majority of them don't want to play as a fat character.
According to whom? Idealized characters are boring. Flawed characters are interesting. And you probably shouldn't bring up Hollywood considering that there's currently a major backlash against them right now for how unoriginal they are in remaking everything. You know what the majority of people who customize their characters do how? They make a character ugly for comedic purposes? Every ugly character in Game of Thrones begs to differ.
When I said "idealized", I was referring to appearance, and also only to female characters. Yes, that's a double standard, but this project only featured female characters so that's who I was focusing my comments on.
My source for what the vast majority of players create is based mainly on three sources: World of Warcraft, Guild Wars 2, and Skyrim mods.
In WoW, among female characters, the four most popular races are human, blood elf, night elf, and draenei, all of whom are widely considered to have the most attractive females. The least popular female races are Tauren and Dwarves, who are widely considered the least attractive. Do you think that's just a coincidence? My source is the website realmpop.com. According to this site, female dwarves (the closest thing WoW has to a BBW) are less than 2% of all female characters, and less than 1% of all characters in general.
My source for GW2 is a graph released by the developers themselves soon after the game launched, which showed that Humans and Norn (basically humans but taller and the same proportions) were by far the most popular races, the vaguely-human Sylvari were third, and the Asura and Charr were by far the least popular. It didn't break it down by gender, but based on my own experiences, 9 out of 10 Charr I encountered were male. Female Charr are probably the least "conventionally attractive and feminine" female race in the game. Combine that with the rareness of the Charr in general, and I think it's safe to say that female Charr are on the same level as female dwarves in WoW.
As for Skyrim, visit nexusmods.com and look at the what the most popular mods are effecting female characters. Almost all of them are meant to make them look more beautiful (by conventional standards, that is) or give them sexier outfits.
These three games are among the most popular games that have character creation, and all three of them also offer the player with the option to create a fat female character, or at least a female character who is not considered conventionally attractive. And in all three of those games, such female characters are the least popular when it comes to player creations. Therefore, I feel comfortable extrapolating from these three games to video games in general.
As for "comedic purposes", the only times I've seen gamers showing off fat or ugly characters are in threads that are specifically about showing off the most absurd or outlandish character they've created using create-a-character features.
To you. Everyone has different definitions of attractive. You've honestly never heard of chubby chasers? You're projecting a lot.
Of course I've heard of them. They're a very tiny niche. Tell developers to make a dating sim focused on fat girls if you think they deserve to be pandered to more. As I pointed out earlier, there are already games in which the player can create fat women, and the vast majority do not choose to do so.
Don't tell me why I'm arguing what I'm arguing. Half of modern day video game developers couldn't imagine their way out of a paper bag, and I feel very comfortable calling them out on that in general. That and when they do create female characters, half of the time they seem to go for anorexic models as a template.
You have no idea what "anorexic" looks like. There's a large middle ground between "overweight" and "anorexic", and I think most female characters fall under that (and believe me, I'm very familiar with the subject). Go ahead and post pictures of female characters you think look "anorexic". I've never seen any.
So pardon my big fat American ass for thinking video games could do better.
I'll use the same argument against you that you used against me: "better" according to whom? Most gamers would not consider a sudden proliferation of fat characters to be "better".
Oh, by the way, I'm overweight as well, so don't bother trying to use any "thin privilege" argument against me.