Well, we all can only speak from our own observations and experiences, @justanotherguy—which may be one reason why there are so many specialities in psychiatry. For me, I thoroughly agree with that psychiatrist's point of view.
We are all born into the 'family game', the family's 'way of doing things', of 'perceiving things', of evading (and thus accumulating) problems and problem behaviours that are then passed on to the next generation and the next... So, that we all have 'mental problems' is unavoidable, in my opinion. It is part of the human condition.
I have observed that people are either predator or predated upon. Too often, the predators go into the professions, including the 'helping'/health professions, law, government, able to choose who they will help and who they will hinder; the predated upon go into trades and non-skilled occupations. Often, not always.
You spoke of 'flying monkeys'. I am not overly familiar with such conduct, but I'm sure it exists in my sphere. It is just, probably, that narcissism, scapegoating and predatory vulnerability is more rampant in my sphere.
I guess we all learn from each other's perspectives. The above are my observations.