Hating on Mike Rowe?

Are people hating on Mike Rowe because he’s telling us that there are a number of jobs out there that don’t require expensive college degrees and there’s no shame in doing dirty jobs? Or is there some other reason that people are hating on him? I never saw Mike Rowe as particularly conservative or particularly liberal. To me, he always seemed evenly balanced between both of these mindsets.

ETA
I scrolled Mike Rowe’s Facebook page and I see what it’s about. He responded.