Interesting idea. I think the most intractable part is that many people believe what they want to believe. They gravitate to a world view for various reasons, backfit it to the data, rationalize the cherrypicking of supporting data and discarding of refuting data, integrate it into their id or ego, fight tooth and nail to protect it, and happily accept the political dis/misinformation you're referring to.

I'd imagine you'd have to identify why people do that, why others don't, and whether it's formalizeable and transferable. Pretty sure psychology has done some work in that area, but brain-fried atm and drawing a blank...