And that's called Fantasy. That is the Harem Genre, which its his own little Island somewhere in-between the other fuck ton of Genres, only created for the as I mentioned before "FANTASY". Ok, I get that, Games, Movies, Books, Songs, Story's told at the Fire Place, are not meant to be Realistic. Its escapism. Go Wild. Be the saviour of 100 Damsel in horny destress. Fuck them all.The people who whine about this almost always view any other man in a story (regardless of how realistic it is) to be "stealing" women from the player character. Their ideal game is one where every man on earth other than the PC get's vanished before the start of the game, but nobody notices or cares.
As you said, the Ideal game is when they can be, the only ones, but I think, that's just stupid, but that's my and maybe your view as well, again there is space for Harem as well here. Something else, "Stealing"..... Who the fuck is stealing mommy dearest in a incest Game..... its you! The Player! Nobody is stealing Mommy from you, Daddy had her first, that how you dickhead (the MC) came to life...............