I think mostly the problem with arguing with people that have certain classes of delusions is not the belief that they're crazy or lack agency, or even that the

I think mostly the problem with arguing with people that have certain classes of delusions is not the belief that they're crazy or lack agency, or even that they're just inherently _stupid_, but that they're either profoundly ignorant or engaging in motivated reasoning. Often they believe (or profess to believe) in something because it makes them feel better for one reason or another. A lot of people claim certain beliefs because it's important for whatever group they claim membership in that they claim to believe it. In either case, arguing them out of it just isn't worth the effort. In the case of people being profoundly ignorant, there's so much you have to explain about how the world works, including really basic things like "how you know something is true", before you have enough common ground to have a reasonable conversation about it. In the case of people who have motivated reasoning, they believe those things for reasons that are entirely immune to any kind of rational argument, because they are starting with the conclusion they want and only see evidence and rational arguments as tools to persuade others of that belief and not as a means of getting to "the truth". They're not crazy, they just don't care about what's true. You can be deeply wrong about a lot of things in life and it _never matters_. Does it matter if you believe the world is flat or not? In almost all cases, no it doesn't. So if it makes you feel better, why not believe that?