> I also think most of us don’t know someone who believes reptilian aliens in human form control all the major nations of Earth.

Really? I know multiple people who genuinely believe this. Yes you'll always get some constant of random picks, but you also have to understand that our social circles hugely limit us from representative samples of the population's opinions. The only people I know who have actually been in crazy cat lady houses were because they worked as repairmen, since there you'll get a sample of the population which needs their furnace looked at sometimes