“An exorcist might call it ‘partial possession’ or ‘demonic infection.’”
Never heard of “demonic infection”. But I believe the possession in these people is not partial; it’s 100%. It would be like being partially pregnant.
The demons are laying low so as not to scare too many people. If KJP’s head were to spin and spew vomitus, it would have people running to the nearest exit, and they must have people listening.