Karl Marx’s home life was a hot mess. Jordan Peterson can’t keep his room clean. So what?
It doesn’t help that he talks nearly in allegory.
It’s hard to point at one thing because often what he says is indirect and implied. When you call him out on it, he says “I didn’t say that.”
Assuming you’re actually interested in his rhetorical techniques and not just a Stan trolling, the podcast “Decoding the Gurus” did a few episodes on him. In the first episode, I’d say they even came down with a positive assessment of him! But they talk about his ability to speak in pseudo-profound bullshit and how it shields him from direct criticism like you’re asking for.