They come from e.g. starting to lose an argument and needing to find a way to disagree with some threatening idea.
What is a threatening idea? Is it an idea that makes my anti-rational memes feel challenged? I believe that most bad feelings are due to anti-rational memes so if an idea is making me feel bad, is it because anti-rational memes are being challenged and thus the anti-rational memes are producing bad feelings so that I don’t further think and adopt that new idea?