You are absolutely right about repetition being key in how people are radicalized. It spreads through a social contagion effect, in which one is repeatedly exposed to extremism and this is reinforced by members of the in-group.

You can see the citations for this claim in the beginning of this article I published after doing my own research (hahaha).

I have ads turned off and don’t benefit from my blog. Just started it to have information ready to counter misinformation I come across online.