That isn't how this works.
It doesn't start with the most vile filth. It starts with slightly edgy jokes, employs irony, and works slowly towards getting you to believe whatever racist slop they're selling. "The alt right playbook" was a youtube series from like a decade ago that covers some of this. I don't usually like youtube videos, but that one I make an exception for.
I remember when the internet was new, I'd make friends with random people I'd "meet". Like, I'd play Diablo with some rando on battle.net and then we'd stay in touch. Now it seems more ephemeral. Maybe it's just because I'm older.