The satanic is different. There have been documented cases of possession. Every ancient culture has some kind of exorcism right. There have been countless studies on actual evil human beings, as opposed to just "bad guys"
if your interested in a pretty in depth 3 book academic work on the subject you can check out this guys book here,
Also there are plenty of interviews / talks given by actual exorcists. These men lay low, don't broadcast their work, but they still do it regularly. There's a point where science stops. For example, every exorcism requires the individual to get a thorough psychiatric evaluation first to rule out any possible psychological problems.
It's worth scrolling through YouTube and checking out. I recommend Zachary King. Interesting history there.
Conservatism is becoming the new Punk Rock.