What trope, precisely, do you mean?
The more strident your social media, the less employable you are. Period. This is something that most smart parents have likely told their children. It's the other side of the same "don't post nudes" coin.
Separately, I think it's important to remember this simple axiom: don't try to get money from people you openly attack. We used to say "don't bite the hand that feeds you," but I think today's youth *might* struggle understanding such a simple aphorism.
You wouldn't expect to write anti-Chinese propaganda on your social media and *then* go to work for a Chinese company, with a Chinese manager, would you? I mean you might get hired, but not sure it's going to work out the way you think once they see your true colors.
Criticize whomever you like babe, but don't act hurt or naive when people choose not to do business with you as a result. Words have consequences.