Hard to know what to do about it when the people who are the most susceptible to misinformation are often the ones who think they’re the least susceptible to misinformation.
And no I don’t just mean right wing chuds. I’ve found there’s a heavy correlation between people who are certain they are immune to propaganda and know the real truth and people who have, in fact, been conned by propaganda and misinformation. Conspiracy theorists, MLM adherents, antivax weirdos, homeopathy people … they’re all “doing their own research” so they can’t be conned.
The hubris is always a dead giveaway. A sort of Dunning-Kruger thing.
For what it’s worth I totally acknowledge that I can be and have been tricked by misinformation and propaganda.