Sartre was optimistic. He believed these people say wrong things on purpose, as a tactic. Like they're rationally advancing a goal through irrational rhetoric.
I think they honestly believe this is how things work. The word-games are their entire worldview. Ideas aren't right or wrong, people are right or wrong, and whatever the people on your side say, you have to shuffle cards to justify it. COVID proved they would continue this behavior whilst gargling their own lungs.
And they think it's all you're doing, because they think that's all there is.