WHat is to become of us, with so many possessed people. I think what you say is true. When you watch people, eventually the dark side emerges from the nicest people. It’s scary.
That is why patience is so important. We deal with the evil we encounter in people by not hating or judging them. THAT protects us. That is why Jesus taught us to “JUDGE NOT LEAST YE BE JUDGED”.
That is also love for the possessed person.When we don’t judge them, it gives them a chance to see themselves. A “Love your enemy” sort of thing.
An acquaintance of mine says there are only two kinds of people :
“Those that are lost, and those that used to be lost”.
We owe to the lost to love them by not hating them. God was patience with us, we need to be patient with them.