A lot of people make broad statements, like all [insert group they don't like] are abusive or dangerous or whatever.
No, it has nothing to do with their sex, gender, nationality, race, color of skin, etc.
What is really happening is that some people are assholes. And they come in all colors, nationalities, genders, and sexes.
But at the same time, not everybody is an asshole. You shouldn't assume they are based on some arbitrary trait they have no control over.