Mate might understand a few things, but it seems to me that he doesn't understand enough of his own mind to see how he's publicly lashed out in an embarrassing and unprofessional 'diagnosis' of Peterson that is probably based on a narrative built in defense of his favored Marxist ideology. Perhaps he also doesn't like Peterson getting so much attention as the 'most awesome Canadian professor/psychologist', and if that's the case he apparently has his own 'suppressed emotions' to contend with.
Without concreteness, and just based on one side, Mate had been asked to speak to the native community here some years ago and he set his price (sounded high to me). Fine, okay, it was what it was, and understand it was agreed upon. I was actually hoping to hear him because addictions and childhood trauma is about as prevalent to the audience as can be and there might have been some good outcomes from his talk, even if for just one person (as he obviously is known as one of the subject psychological guru's on these matters). However, it was said he backed out rather late citing excuses that sounded like it was not worth his time to travel (not being that far away) and speak to such a small group (and the group had to scrample to find a replacement speaker). And maybe that is fair enough, his time is valuable to him and I'm sure he was/is in demand, and who knows what was going on in his schedule. Nevertheless, this was quite a let down for the group who was willing to pay the costs as agreed to help some of their people. At the time, it was surprising because it sound like it was done in such a negative way, like you're people are not worth my time, and I don't think people were impressed, especially coming from a guy who does (or once did) work with similar groups in Vancouver's East end building his career.
Still, some of what Mate has to say is important, yet getting into the mix with Peterson is just plain silly (and on Twitter to boot). Perhaps, though, if it gains to one some "attention" in the press and in certain circles, certain left circles or professional circles, this might or might not have be driving his actions. If so, what is at root might dovetail with what is underlined above as his "jealousy factor" aka he has a pronounced occipital ridge, as the C's once mentioned, that got the best of him.
Whatever the case, it seems like it could be a backfire move on Mate's part, and it's something else JP now has to deal with
instead of being supported, osit. Also, in retrospect of what the group discussed above actually needing as a speaker, who would have been more beneficial for them, Mate or Peterson? I'm now apt to go with the latter; just opining.