I think it comes with both dementia and demonic possession. The latter is in the end the only thing that can explain the easily observable transformation in some people when simply hearing the name ‘Trump’. The dilating pupils, the dramatic shift to a violent countenance, the raised voice, etc. I’ve seen it in more than a handful of otherwise perfectly healthy adults in the prime of life, and it’s quite unsettling.
You’re right about “the look”.
I’ve known missionaries who dealt with demonic possession on foreign fields, and the dilated pupils seem to be a constant. That was in the ‘60s when missionaries often lived with us when on furlough.
Who knew it ever would be this prevalent in America 50 years later?