I taught my students the full truth above Che Guevara.
A couple of them (all white) just could not believe it.
Said one, "But Jay-Z wears a Che Guevara t-shirt! And he's...smart! He would know if that were true! He wouldn't wear it if it were true!!"
More than likely, I explained, he'd never known that Che was a bloodthirsty probable-psychopath (ok, I didn't quite say it like that) that hated gays, jazz, rock, jeans, long hair, and ANY push-back against him, because most of the world so loves Che, that they will not say or listen to the facts. But they are facts.
"But Jay-Z would know!! He's really smart!"
Not sure I ever got through to that one...