>On his episode of JRE he said something called "mass formation psychosis" existed, and had something to do with COVID(?!?) which is a bald-faced lie.

Mass formation psychosis is a thing that does exist. It just means shared delusion. Psychologists steer clear of religion, but if you are atheist, beliefs in Gods would be a good example.

It basically just means erroneous groupthink. It absolutely has something to do with COVID, but people obviously argue over which side is delusional, or at least more delusional.