If democracy and free speech are to survive, I'm all in on the idea that education is the most critical piece. Obviously, bias and falsehoods can be injected into information taught and regurgitated in educational systems, this is nothing new and already practiced. This is why I'm a strong proponent of teaching the process of fact finding, the scientific method, etc. We need to teach people to be better free thinkers and trust in them to make good decisions. We need to teach them on manipulation strategies deployed and show them how to avoid them. Those who want to leverage and manipulate people don't like this idea.
Too many interested in authority want people to be easily manipulated and are playing roulette with who ultimately wins the game of control: wealthy private interests, US government, foreign government, and even your neighbors. We have to trust that educating everyone to defend against these sorts of disinformation attacks is actually in our own best interest, otherwise I think we have to give up on ideals of democracy.