I could be wrong,
but if I had family tragedies with my 3 children suffering, (1 being crushed in the jaws of a animatronic bear, 1 being grabbed and murdered by an animatronic that I designed myself, and 1 suffering through being rotted and hollowed out by a scooper) springlock failure that crushed my organs, fused his my to an endoskeleton, and subjected me to multiple catastrophic fires and eternal spiritual damnation.
I really don't think I would survive unless I killed 11 to 12 children by luring and abducting by using specialized hidden features built into my animatronic designs, grossly neglecting and psychologically or physically torturing my own children, Conducting dangerous, unethical human experiments using "Remnant", designing deadly automated traps, failing to secure permits for underground facilities, and causing multiple workplace fatalities through gross engineering negligence, and hiding murdered children's bodies inside animatronic mascot suits.
The reason why William Always comes back is because Satan doesn't want him. In fact, William MIGHT BE SATAN... BUT THATS JUST A THEORY! A GAME THEORY!!!!!!!!!!!!!!!!!!
