There is literally nothing in the article about psychosis.
You are writing prose based on nothing but your desire to muddy the water and refusal to believe someone old cant be a fucking aggressive asshole just because they are simply an asshole.
And let me tell you, Plenty of young, aggressive assholes grow into old aggressive assholes who are still convinced they can slap people around and get what they want, like they did with their children when they were 4.