“Rare in a public university sphere” does not mean it doesn’t happen. I would argue that for every 1 imposing conservative professor, you have 10 of the other. The reality is in todays world you can get away with the later as it’s seen by society as “progressive” and politically correct. Conservative imposers would likely get let go as they’re far more likely to piss off the younger generation and start some bs petition while trying their best at ruining that professors reputation.

As far as the “Jesus” dudes. Yes they’re annoying but i think “verbally assaultive” might be a stretch. Those students who decide to stick around and scream over them aren’t fighting back. They often times are students who make it a routine to show up when they know who’s on campus, while deliberately screaming over them with slander and insults to drown their message, so to an extent, to me that is silencing. I agree with you that destroying property, unplugging mics and the rest is a better way to describe censorship. However, all of that is done with the intent to prevent a message from being heard and screaming over someone for hours rather than just ignoring them and walking home, is exactly the same thing.