Because Republican voters never, ever seek evidence or utilize basic critical thinking when their hatred steeped biases are confirmed.

A sufficiently hatemongering, and therefore trusted conservative talking head could say “Kamala Harris is a secret Aids Virus in a skin suit made of harvested fetuses made human size by George Soros’ double secret reverse shrink ray!”

And you’d cue thunderous Republican voter applause with shrieks of “I FUCKING KNEW IT!”