Yup I've never experienced intrusive thoughts, so apparently it's not a universal thing that all humans experience. I do have an inner monologe though, and I do visualize people's faces in my mind, so please don't diagnose me with aphantasia.
I mean, you jump off one cliff and it's fun and suddenly your body thinks all that dangerous deadly shit is gonna be wild I dunno that's how it started with me. Now all the cliffs look fun even if there isn't a safe landing spot unders and all the voids start looking more and more exciting. Go fig.