I agree Pagan. If someone is mentally disturbed, it is more likely to help them distance themselves from reality, whereas a person of sound mind will realize that it is just a game, whether they are a child or an adult.
For those of you wondering where violent games are heading check the new scandalous one in production: Yandere Simulator. It allows you to plot a murder through stalking, bullying and the gory act of killing itself. How people could take time to both play and be entertained by such things is in itself outrageous.
I don't think you can blame society as a whole. Instead, it's more a matter of ease of communication and changing distribution models.
Social media allows communities to form around any sort of shared interest, no matter how niche. With online distribution, the barrier to entry for a market is much lower than ever before, allowing those niche markets to be served.
Extreme Games like Rapelay, Yandere Simulator, or even Hatred, are niche products.
That said, video games have been comfortable with violence for a while and are getting more comfortable with Sex. Witcher 3 is a triple A title with fairly graphic relations. So long as it's advertised and rated accordingly, I think that's fine, especially in a world where explicit pornography is so trivially easy to access.
For me you buy what you can handle. If that's what you want and you're not acting out the events then why not? We're in the digital age so you can stay home and pretend. Everyone else as to LARP or fantasize to get it done.
I think, in general, that you buy what you want to enjoy more so than what you can handle.
Video Games are an art form that people use for escapism, much like cinema. It's far younger than cinema though, so is still maturing and going through growing pains. There is an audience for cinema with content most people would find disturbing, so I can't be too disturbed by finding the same thing in Video Games.
So long as media is clearly labeled and marketed appropriately, it doesn't bother me, because I can avoid content I don't want to put in my brain. I'll never play Yandere Simulator, much like I'll never sit through the Serbian Film, and yet I've a hard time condemning their existence.
While I understand the angle you are taking on this your analogy is like saying its better the young ones drink beer rather than smoke coke. While the beer might be bad it doesn't mean I would encourage it nor promote it as part of entertainment when they could have orange juice. Remember the days of pong and how people were addicted to it? Sex and violence wasn't even a thought, a sneaky person looked to magazines and videos for that but since the younger generation had a harder time getting access to those adults didn't consider it like they are now because its so prevalent.