I think it's way beyond that. They are propagandized with almost cult-like indoctrination. When they scream 'hate speech' they are really screaming 'heresy' against their rigid worldview.
They seem to demand total groupthink obedience to their doctrines, not just a simple devaluing of something actually hateful or racist. You could say taxes are too high and that would be hate speech, even though nothing hateful toward anyone was said.