"Conservatism has exactly one proposition, to wit: there is an in-group group in which the law protects but does not bind, and there is an out-group in which the law binds but does not protect."

I'm sure I didn't quote that properly, but you get the point.

When viewing reality through the lens of life being zero-sum, if one is not policing others, they are being policed. Add xenophobia and fear of others who are noncomforming and you end up with someone who feels the need to judge everyone around them.