Calling someone "tall" is not an ad-hom anyway. I get what you're saying, but that's not a great example.

For me, I draw a distinction between saying a person uses idiotic sources and calling the person an idiot. Similar, they may have an idiotic position on something. I try not to have idiotic positions, but I'm sure I'm not immune to have one (or more). I try to self-correct when it is revealed.

It's just me. I think it fosters a bit more conversation if one makes that distinction.

I agree that BHM uses very bad sources, in general. And there may be some of "the worst Rep is better than the best Dem" at work here, also. Which is not true for either party, and it's somewhat sad people on either side can think that way. (e.g. Liz Cheney is better than Menendez, even though Menendez is a Dem)