I was once kind of third world nationalist, slightly attracted to socialism as the most obvious alternative to Western imperialism, so maybe I was predisposed.
But I finally tipped into the radical left side after seeing some protests go down. I saw the full spectrum: peaceful libs trying to have "meaningful debates," cops grabbing protesters, aggressive fash showing up, and only Antifa rising to deal with them. The pathetic responses of the establishment and general population afterwards who has no stakes in what I actually experienced then.
I was turned towards anarchism from there but I started reading theory and got into red socialism as well later on