Funniest mf in the room. Mind your own business and don't even look at the game's page if it bugs you that much, dude you literally took your time coming down to the comments just to rant about a thing that you could've ignored.
First, this is an adult game. These are not not meant for people who hold any kind of social stick up their assholes. Second, there's stuff which is much worse like people who treat rape as a fetish instead of a crime, so what's the big problem with incest?
As I said, you're free to get the fuck outta here if it bugs you that much instead of just talking shit.