“Most Protestants do not believe in demonic possession as such.”
If you lump Evangelicals with Protestants (and many do), you need to get out more. We absolutely believe in demonic possession! I have (Baptist) friends on the foreign mission field who have dealt with their share of demons. And some here in the states.
I recall when I was little and our family was camping out with other ministers’ families, at night in our tents we overheard discussions with a missionary friend from Liberia. The subject came up and it scared the crap out of us for years.
At Seminary, we’re sure there were artifacts in the Missions Professor’s office, on the floor below our dorm, that were possessed. Thumping, bumping, moving, etc., went on quite often. He had brought them home when he retired from being a missionary. Once he got rid of some them, all was quiet.