His partner Lady Nerevar has publicly stated the MK was fucked up for doing this.

And, I believe, MK has apologised too, he was apparently on a long recovery from...long term barbiturate abuse I think? It was apparently giving him blackouts and psychotic breaks. Which isn't an excuse since plenty of people have that and don't run around spewing transphobic bullshit, but does explain some of the crazier shit.