nietzsche's abyss
The more you preach against a quality it’s like what Nietzsche said: “He who fights with monsters should be careful lest he thereby become a monster. And if you gaze long into an abyss, the abyss also gazes into you.”
Maybe in this sense you also become what you don’t want to become (when it’s something you utterly despise and spend…a little bit too much…time advocating against).
Intrusive thoughts might be small reflections of our fighting against something