Because that's what they're INSTRUCTED to do in the textbook/script, provided by the folks that cater specifically to undereducated myopic dupes, that, for some unfathomable reason, refuse to invoke their Constitutional Right to remain silent concerning ANY "public issue".

Yep, the empty cans make the most noise.

I call them Sophomores, they call themselves Progressives.
Quite often, those that refer to themselves as "teh wimyns", can't even seem to learn to spell.
But "social" quota promotion policy in the edumacation, professional, and political arenas, has circumvented that whole nasty resume/CV "merit" thing.