Literally the only thing that would make this guy go away is if he was completely ignored for at least a 3 week period
He would then attempt a couple of additional sporadic efforts in the following weeks/months, but then if completely ignored would then seek somewhere else
Not saying that's what is wanted due to the car crash entertainment, but no amount of exposure, no amount of stalking people he knows, no amount of ridicule, no amount of pointing out he has made no muscle gain in 25 years, literally nothing will make him leave except for his kryptonite, being ignored