What they suffer from is a childish mode of thought, in which demanding or declaring things as true will make them true. It's most common amongst children, obviously, but also amongst the poorly educated and people with low intelligence, who can't understand causality in some manner, or who believe that their personal thoughts have a direct effect on the rest of the world. In troons, it's likely a sign of mental regression, either as a psychological response to reality refusing to conform to their demands, or mental problems induced by their lifestyles. Ironically enough, it is often referred to as "magical thinking".