That's kind of the point ? It's a game for specific hard kinks if you're not into it you don't have to play, it's completely fine and people like it BECAUSE it's messed.
It's fiction, saying "I am just amazed that some people can enjoy something like this..." is just antagonizing and judging people who you don't even know for liking things you don't like.
Play a different game, there are plenty good ones with actual good story along with nice sex scenes without the hard kinks side