The brain runs predictive models like this as a diagnostic self-check. The fact that you react with disgust and disdain to its hypothetical presentation means you are functioning within operational parameters. Ideally, one might still have sufficient agency and executive function to recognize it's NOT okay if you DON'T recoil in revulsion from these ideations. Like, when I checked myself into a psych ward 11 years ago after recognizing "Wait, picturing killing myself started feeling GOOD? Uh oh..."