>Are you saying that it's right or unacceptable from anyone?
Are you asking for my personal opinion, the opinion of college administration, the opinion of student bodies, etc.?
>Because it sounds like you are trying to turn it into whataboutism.
It's not whataboutism because campus leftists have been doing exactly what the OP described:
"But jeering, booing and taunting, that’s a step too far. That no longer protesting a speaker as part of a free debate, but instead attacking them as an individual in the hopes of cowing them into submission."
That's the MO for campus "cancel culture".