> I wonder what happened? Maybe it was ghosts. We call it "disease". Different from genocide, which is intentional killing. There were only a bunch of Spaniards over there.

See: https://books.google.com/books?id=dvjNyZTFrS4C

> Okay. You'll note that the only citation to that claim is a political science professor in a political science journal

You can also check out John Elliott. https://www.nybooks.com/articles/1970/11/05/spanish-holocaus...