There is this rigidity of mindset that I see:
If you say something I vehemently disagree with, I am duty bound to reject you, your thoughts, your tenets, your beliefs and everything about you, lest I be tarred with the brush of association.
All or nothing.
No room for dissent in any view.
Why the hell we can't say, "Crikey, I'm in full agreement with you on this, however disagree completely with your stance on that" I don't know.
But I do know that this "one strike and you're out" has led to terrifying totalitarianism. It's why labour supporters are able to turn a blind eye to the misogyny, because to reject one part of the culture is to be outcast.
And it leads the door wide open to allowing your opponents to make a landgrab for the truth, leaving you 'honour bound' to take the opposing position in everything.
This is how we've ended up with the right wing acknowledging biology, leaving the left wing feeling compelled to take the opposite stance.
I hate you, so I have to take the opposing view to you in all things.
We are letting our enemies have the monopoly on truth, for no reason other than they got there first, and they have a vested interest in manipulating us to take the opposite stance.
For the record, my opinion is that Greer has done some powerful and brilliant stuff, and some jawdroppingly stupid shit too.
We all have feet of clay.