Trolls and conspiracy theorists making the YouTube shooter a free speech martyr

Indeed. Most people I've talked to who have such views think quite a lot about that because it makes them uncomfortable. Myself included.

Your definition of unsavory is likely different then someone else’s.

I like whisky. I presume people who fit your definition of unsavory do as well. Should I re-evaluate my appreciation of whisky?

Exactly, you'll commit a ton of unforced Type 1 errors.

Is that really a good heuristic? It doesn't seem like people's morality should correlate with their factual correctness.

EDIT: At least after controlling for IQ.

That way dictatorship lies...