If you dig too deep into reality, you will discover that effectively 100% of the population is delusional on no less than 2000 subjects. They just have yet to be bitten on the ass for it.

And people take it very poorly when you start pointing it out; just like you and I will when someone else shows up to do the same thing to us. Historically speaking we lock people up for shouting things that have not yet been accepted by enough people. Like the earth is going to be eaten by the sun (true in a few billion years) or the sky is falling (it is more acceptable when you call it rain).