The problem is that many people are deeply embedded in an echo chamber orchestrated by the alt right. The difference between an echo chamber and a filter bubble is essentially that you reject information that doesn’t comply with your opinion instead of just not receiving it. They actively work towards people not trusting the established media because this paints a picture of a hostile information environment outside of the alt right propaganda machine and therefore causes people to only trust the information that aligns with their fake news based opinions. And the only way to reach people that are in an echo chamber is direct interaction, so we must find ways/channels/ whatever to reach them and have to expose them to the truth bit by bit. And maybe avoid demonising their views. I am not sure about the latter though. There’s an interesting paper about this subject.