However, I don't think there was a suggestion that there are hard boundaries (i.e. certain races/people NEVER commit abuse). If anything, it was a suggestion that certain groups do have among their number a disproportionate number of abusers.
This is true, statistically. The subset of gay men has a vastly disproportionate number of abusers versus, say, heterosexual women (or, really, any other subset of gender and orientation).
So to suggest that it is patently absurd that gender or sexual leanings have no bearing on abuse is incorrect. I'm not suggesting you are making that statement. Only that it isn't clear if you are making that statement or not.