This is absolutely the right answer, but maybe Facebook can do some things to help. It's possible to gamify the process of learning to spot biases by presenting people with situations and getting them to think critically to solve the biases or fallacies. Especially on Facebook, people love filling out questionnaires that tell them something about themselves.
I'm not saying that one smart game is going to fix the entire problem, but adding the development of logic skills into the types of activities that people enjoy doing on Facebook is definitely possible.
It doesn't work that way. It assumes that what people are doing is wrong - it's not. The mental overhead to assess everything clinically is sufficient that faster thinkers can just outrun you. People/brains are making trade offs to deal with the world around them.
Other humans are taking advantage of those gaps to mobilize votes or advertisements.
There's no way out and I've been wondering when people would realize the depth and intricacy of the mess we're in. Hopefully people pay more attention to the way cognitive cheat code are being abused.
There's really an amazing amount of misinformation and manipulation going on. I think there's a place for people developing critical thinking skills, but there's also a limit to what people can sort through. There's a big need for more software to fact-check and compare sources across the Internet. Having Facebook run it is one part of the solution, but people need to have transparent software that they control to do the same kind of work so it isn't entirely centralized. Google, Amazon, and Facebook assistants are great, but we need personal assistants that work for us.
I'm not saying that one smart game is going to fix the entire problem, but adding the development of logic skills into the types of activities that people enjoy doing on Facebook is definitely possible.