I'd like to point out that while it's true that statistically speaking, lower income and mental illness consistently have a correlation in the first world, there are also plenty of people who come from middle-upper class with family that loves them and helps them out that struggle from severe mental illness as much as anyone else.

The "us" against "them" mentality of severe mental illness vs "normies" as you put it; where do people who have other struggles such as physical disabilities fall on this seemingly very black and white spectrum?

I'm just a bit puzzled about how you've seemingly categorized most people into "us" and "them" when we live in a world with a complex society filled with a variety of people?