Gary, 
To be clear, do you still stand by those emotionally laden terms "McCarthyism" and "witch hunt?"  Don't you feel it's time to back off the conflict, discuss this reasonably, and look for solutions?
And to be clear, I'd be just as concerned if I saw the prof's critics still attacking her with unfounded charges of racism.  (Or  "neo-liberals screaming for her resignation.") We're past the time for one-sided attacks.
Regards, DC