It took me a long time to realize that most people don’t make any effort to understand politics beyond surface level headlines.
A lot of people treat politics like they behave in the HN comment section: They see the headline, arrive at a conclusion based on previous assumptions, and head straight to the comment section to argue their side without ever even making an effort to read the article. With politics, politicians are experts at crafting headlines and sound bites that feed these people their confirmation bias and tickle the part of the brain that says this person is on your side.
I’ve had some success discussing issues with these people calmly and openly, adding facts one at a time until they realize the situation isn’t what they thought. There are a lot of “That can’t be right” lightbulbs going off as the facts start to conflict with their idea of how the world works. This goes for both extremes of the political spectrum, BTW.
I’m still having hardships discussing things calmly with idiots.