Simply put Belonging = Survival And brains mix up actual physical survival with ‘identity survival’. Identity can be thought of as the narrative one creates to gauge level of perceived ( real, imagined, combo of both ) belonging relative to perceived social convention. Part of ‘schizophrenia’ is this system sans solid set of rules one perceives to be social convention. The brain can no longer accurately gauge level of belonging because there is no set of rules that it can judge against. With modern technology, there is easy access to many different types of living, which makes notions of right and wrong untenable. All the ‘mental illness’s’ have a lack of trust of others and alienation at root which is why connection to others is so huge. It relieves the constant anxiety caused by feeling like you don’t belong. Its all much much much much more simple than everyone is making it out to be. But Control = Survival and if you’re not really in control then how are you supposed to survive so the notion that we are being controlled by forces outside our perception ( even though those forces are what build the ability to have perception ( subconscious )) causes so much anxiety it is not even considered as a possible assumption. Thats part of it at least.