I don't agree with the sentiment that videogames as a medium are inherently atomizing or inevitably lead to antisocial behavior, and in fact give great credit to videogames for helping me find and learn to appreciate the power and importance of community.

That said: it should almost go without saying at this point that the broader popular culture in film and television is dictated by a bunch of demonic sex criminals who literally couldn't depict a healthy functioning relationship if their lives depended on it. Videogame writers are, if anything, even worse. They have all the same trickle down toxic misconceptions from Hollywood and if romance is depicted in videogames at all its almost always done in exactly the way you describe it: push the right buttons in the right sequence and you beat the game and receive 1 sex. Worse yet: sex is essentially the end of that game.

If you're a young heavily alienated man who mostly engages with power fantasy style games and you're already primed to view other people as "NPCs", then PUA makes a ton of sense.