The big problem with Peterson is he has to moralize on everything. He quotes Nietzsche and adds "that's good" to stuff he agrees with. Gee, thanks Jordan...
Nietzsche literally moralized everything. His books were called "On the Genealogy of Morality" and "Beyond Good and Evil".
But i see what you're saying. I think to be an academic, you can't be an activist. You need to look at things objectively, or else it becomes much easier to run into confirmation bias, and then your research is just worthless lies. From an academic sense, "Hitler did X and that's bad" isn't nearly as important as "Hitler did X because of Y and Z".
Peterson's perspectives on psychology are 1000x more interesting than his political views.