Let us start a little further back. What do they do to each other? They cause wars, they force others into poverty, they toy with each others' lives! They force women into sexual slavery, children not far behind. Men are evil. Humans altogether, but especially men. That is half of the grotesque slop of the population there.
[he sort of realizes his bias for the first time here. Everyone overtly horrible that he has met has been a grown man.]