That's great until it convinces them to make real-world decisions that affect the rest of us. For instance, vaccine misinformation talked a lot of people against getting safe (or at least safer than the illness), effective (not
perfect, but
effective) immunity shots for COVID. Those people are dead from being wrong.
I think someone's an idiot for denying the moon landings, but their ignorance doesn't directly affect my ability to stay alive and health. Some misinformation is worse than others.