I wouldn't even worry about the specific material. Teach them to think critically, to never trust authority figures, to verify anything that is told to them. Encourage them to read non-fiction books on communism and facism....or fictional books about dystopian worlds. If you cover that then they will figure everything out on their own. The " traditional conservative" types taught their children to respect authority figures without question....and now we're seeing some of the backlash. I'm shocked at how many "traditional conservatives" bent over for the vaccine just because their doctor, religious leader, etc. said it was ok.