I don’t think it’s as bad as people think. We have all believed, believe, and will believe misinformation. It’s a part of being human.
You are prompted to check at some point; someone tells you you’re wrong, you are curious, things feel incongruous, whatever. You find out you’re wrong and you update your shit. Easy, life goes on.
But certain people seem to actively shop for rhetoric that will look good on their shelves. You tell them they’re wrong and they dig in. They usually have no filter and say their ideas out loud even if it denigrates others.
It’s like propaganda is a chemical being injected that binds with cancer cells so you can more easily see them with the naked eye. The chemical touches everything but it “reacts” with the cancer.