"Never vote them in in the first place" is a political solution, albeit a preventative solution and not a mid-issue one. Another political solution is "create regulations against indoctrination/propaganda in schools and news media".

We have a lot of youngsters here who might not remember the days, but it's in living memory where it was actually not allowed to overtly publish overly blatant indoctrinating propaganda and call it "news". That law was changed well within this side of the millennium, and things spiraled worse since.