That is so & I've seen recent debates on the need for more bestiality, or bemoaning the lack of it but if you're going to lump blackmail in that list with it, as yet another manifestation of how bad things can be, why would incest be excluded? I understand why you havn't of course, in order to make your point but to me there are huge differences between the levels of human depravity represented in this forum & we all have to find what is acceptable to us as individuals.
Ancient Rome had professional "bestiarii" who, amongst other very dangerous things, trained/forced animals to fuck humans. Most animals don't have any natural inclination to do this, despite what dogs do with human legs. People were entertained by it, while others puked. What's now called vore was virtually an everyday item on the bill in many arenas. Society condoned this & even reserved certain animals as punishment for specific crimes....committed by women, e.g. a donkey for adultery.
I've chosen to stop playing any game which introduces bestiality, (I leave the game without comment) & although I don't like incest, it's not something that automatically makes me uninstall. On the other hand, along with blackmail, I don't see it in the same light as necrophilia etc. What's different about AWAM so far is it's ongoing, some might say never-ending, vanilla approach to sex in the various storylines. Perhaps seeing mother/son fucking as some sort of sacred culmination of 'something' wouldn't be in line with that?