It's not that I think critical thinking is an insanely effective approach, I just don't think there are non-political solutions (i.e. requiring organizing people for a more hopeful future). Getting people to join political groups and getting them to feel less alone on a non-conspiracy basis would do wonders. I just don't think technocratic solutions will work because either they restrict political speech, abuse people into staying politically conformist when that is clearly failing, or are ineffective and harm people.

For example, you might demand FB and Youtube stop using their divisive engagement strategies, but that would violate their profit motive so they won't. The only solutions are political organizing.