Allow me to express this to you in simple terms. The jewish demons hate Christians. Most white atheists hate Christians as they welcome muslim rapists into their countries. Most of the world hate Christians. So we have to understand this conundrum.
I have around 10 demons on my ass, some of them I think like me. The harassment you'll face is that akin to that of which a skitz would face. You cannot fear this harassment. You're going to have to face it head on. And you're gonna have to know as well, they don't target retarded atheists because they're already doing the devils work.
The reason I can say that is because I can ask an atheist the difference between micro and macro evolution and none of them haven't the faintest clue. I don't even believe in the big bang. That sounds like kaballah bullshit to me.
There could be many solutions. He may need to move out of wherever he is at. He may need to rest more. He may need to turn from some sin in his life holding him back. Even better nutrition could help.
But in regards to location, I visit California from time to time, and I have a "bad vibe" experience or two every time I visit. I don't know what it is. Sometimes I'm meeting very nice friendly people, I can get 8 hours of sleep, but there is just this vibe in the air. Negative thoughts come out of no where at the strangest times, with little context to them. Then I go back to Mexico and I'm more at peace.
I think I may just be picking up on other people's energy, and in the US it is getting more demonic. Demonic subconscious programming in music, tv, movies. Demonic mRNA injections / fear porn. In Mexico people overall are more laid back. Few people ever really cared about COVID, and most only wear masks because they are forced to. The bus driver always has the mask under his nose or chin, and that's the way it should be.