But if you seriously believe those other guys are that bad, just break out into a civil/world war already, there’s basically no other way to solve that problem…
That’s quite reductive. One can see someone as that bad, but still find them redeemable. But it’s a two way street. There needs to be a bit of personal responsibility.
One of the things that cults do is carve off people from the wider populace. It’s them that say “everyone is against you” it’s them that say that “there’s no way back, so you might as well throw your lot in with us. We are the only ones that understand and accept you. As long as you behave in a way that we feel is acceptable, or do something for us”.
Staying in the cult starts off the easy path rather than seek to change yourself. Then, after a while you start falling for the sunk cost fallacy. It’s that, that keeps you in the long term even when times get tough.
But, there is always redemption, a way out. And blaming your whole life on other people isn’t a particularly efficient tactic. Again, personal responsibility.