Hehha, okay it's true, I admit us men are annoying and won't shut up (this is largely intentional) especially when we butt in unexpectedly for no percievable reason, and many are show off's. Hell, I haven't cured cancer and I think I'm the epitomy of amazing.
The truth is though that only 1/4 of men cheat, incidentally this is the same number of women who cheat.
There are so many males who are virgins over the age of 20 that keeping their penises to themselves is the least of their difficulties.
It's a sad fact of life that the men who are asses, just happen to often be the loudest. There are as many decent males as decent females; as you yourself stated, thinking that someone's sexuality has anything to do with their opinions is ignorant.
It could be that you should meet better adjusted people.
What is inside someone's soul is far more instrumental than whether they have a Y chromosome or not.