Well, its more likely to hurt Console gaming.
This doesnt affect Digital Distribution Platforms, and therefore can only swing kicks in the direction of PC gaming.
I use a console and a PC personally*, but it doesnt change the fact that Digital Platforms are practically untouchable by these kinds of laws as it is, and therefore cannot be affected.
Console games however currently need to be purchased on disc 90% of the time, and therefore will be affected. And the wild kicks at PC gaming will be aimed at disc copies, which do not make up the majority of PC gamers.
Having said all that, when it comes down to it, people will continue to get these games, only in different ways. In Australia, its illegal to own R18+ games, but people still get them by means of the Internet. This just means that gaming STORES will take a hit in the affected areas, but the industry just needs to adapt to the new issues encircling it, and bunker down for what could end up being a Legal spitting contest.
In other words, nothings any different to how it was before. Its just the media, and communities screaming at the law with a fierce defiance.
*Offtopic: Funny nowadays how if you dont point this out youll just get passed off as a biased fanboy.