We get it, you're anti-incest, like you haven't made that perfectly clear before.
This game isn't tailored to your taste though, maybe just accept the fact that not everything will be to your preference, and that the dev maybe enjoys creating incest content and/or wants to reach a wider audience. Did you ever stop to think that maybe your idea of what direction the game should go, isn't the direction the dev wants it to go?
There are some things I don't find particularly interesting about the game, and also things I would change if it were my game. It's not my game though, nor is it yours, I'm not going to mention my preferences or lack of interest of a certain tag/genre every chance I get though.
I'm not saying you shouldn't feel the way you do about incest or any other tag or genre of game, but we are well into the story now, and it's been well established what the themes are and the direction the game is going. Let's just enjoy the game for what it is and not what we would prefer it to be.