Sometimes prophecies are self fullfilling, treat a man like the worst example of the gender he represents, through no fault of his own and you might find he behaves less than appropriately.
I'm not saying that excuses the behaviour, but if women looked at me and immediately thought "potential rapist/murderer" I can't say that wouldn't upset me and possibly cause me to act less than amicably.
I mean what the fuck am I supposed to do? Somehow talk the worst male scum out of their depraved behaviour, or somehow try to convince all women that "I'm one of the good ones"? That's never going to happen no matter how hard I try.
We all need to be realistic and keep things in perspective. It's not OK to treat people as the worst of the people they identify with, it's no better than the "all Muslims are terrorists" mentality.
People these days just don't appreciate a strong and healthy frame when they see one.
You may not like it, but this is what peak male performance looks like.