How far ur moral ground stand when you reading ???

We knew things like non-con, familial bond, blackmail, and so on is wrong if u talking about morals. On the other hand some people actually doesn't mind dark genre like that, and sometimes abuse and negligence often used as good material for a villain/mc flashback as reason to do smth good/bad. How far u can handle morally wrong act? Is there a line u set for urself like " I might can handle cheating, but rape is the line i wont tolerate " ?? Or as long as no one knew abt it, u keep it to urself of how far u can actually tolerate morally wrong read???