Is firing the only way to get cancelled?

What about being suspended? Being strong armed into "volunteering" into stepping back from teaching/speaking roles? Having career-advancing opportunities pass you by "for some reason"? Never getting a job in the first place because of your reputation?

Can you provide some examples of these happening ? Or even better some statistics ?

I'm not really keeping track, but I can immediately recall the professor who spoke about a chinese filler word, the chinese native music professor who showed his class a critically acclaimed film starring Laurence Olivier...