The term "xxx nazi" has been around for over 70 years to describe people with sticks shoved so far up their asses that they poke out the tops of their heads.

And "grammar nazi" has been around since at least 1990, and the infamous Seinfeld Soup Nazi since 1995.

I'm not sure of the etymology of the "not everybody's a Nazi Nazi" but I'm sure you're not the first.

But in any case:

> You can't just call everyone you don't like a Nazi.

Yes, yes, I can. I don't (because I reserve the appellation for certain particular kinds of attitudes), but I could if I wanted to.