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.
I totally get where you’re coming from in regard to the importance of critical thinking and media bias/government influence.
As for my blog, the references section is how how I affirm it’s valid information. I used scholarly sources or reputable publications, like Psychology today, and only linked to media sources when it was pertaining to the current radicalism in our politics over here in the US.
But even then, I personally use independent media fact checkers on the media institutions I cited. Cross-checking what those articles state is pretty easy, and having multiple unbiased/less biased sources corroborating reporting is a decent indication it is accurate.
But as you said, recognizing the validity of citations is a learned skill. Speaking personally, this was a skill I developed academically. I often encourage people to take a critical thinking course at a local community college and I believe that should be mandatory curriculum in high school/secondary school.
That certainly provided me with a buffer to the misinformation and radicalism that I’ve seen grip and corrupt so many people I know/knew.