Clearly it wasn’t. The original post showed one manager being an asshole. OPs follow-up is that all managers are assholes. The leap and logic there is a relatively stupid way to view the world. It’s the same logic that says my sister is bad at driving, therefore all women are bad at driving. If you or the op want to have an immature view of the world, that’s your prerogative, but I’m interested in understanding at least the first level argument to be made for why all managers are bad.