Well, to be fair, I can sort of see where they're coming from? Inviting, say, a virulent racist to hold a panel at your school sort of sends the message "hey, virulent racists of the world, we embrace you, here you are welcome".
Indeed.
There's a lot to be said about how some kinds of SJ treats privilege as original sin that has to be atoned by loudly proclaiming that you are not like all those other [white/straight/cis/abled/male] people, and if you don't viciously attack the bigots how will we know you are not one of them etc.
Aye. People who crow about how they're a
good man/cis person/able person/white person/etc. are missing the point; it's not about your image, it's about the things you actually
do. Stop begging for e-cookies and start examining your own biases and your impact on the world.
That's how to be a good ally, not public masturbatory self-flagellation or elevation of the self as one of the good ones, for real guys, why won't you believe me, waah the discriminated classes are being meeeeeeeeeeeean, why can't they see I'm one of the good ones.