This seems pretty straightforward.
Unless dude’s subject area is online brigading, not sure what anything has to do with his “mah freedumbs”
Academic freedom applies to horrific views.
However, it does not apply to horrific *conduct* in the course of the job and I'd be shocked if Cofnas hasn't had overtly fire-able conduct toward nonwhites or women.
Hell, this is the sort of whiny asshole who might well do outright fraud, too.