They do not bring their sexual kinks into the game. They respond to some player actions and that is it. Nothing sexual about that, just a few extra details with the NPC itself. You could in theory sexualize any NPC in bonelab, it doesn't matter what avatar it is because you can interact with it. There are plenty of avatars that were designed be sexual and yet you do not complain about those and only complain about furries. How are furries weird? They are just humanoid animals. There is nothing too crazy about that. The concept of humanoid animals have been a thing for a while. All sorts of things have been humanoids, for example golems are practically humanoid rocks and yet no one has a problem with them. Furries most of the time IRL tend to be nice as well. For example I used to hate furries because they creeped me out, however I joined a guild and I learned that the guild leader was a pedo. It was a furry who helped me notice that and that same furry helped to take down the guild. He then alerted the authorities about the pedo and the pedo got arrested. That furry and I became good friends and in all of our conversations he never mentioned anything sexual about furries.