Schwartz is hardly unique in that regard. For some odd reason, fields concerning human behaviour, from mental health to sociology, are dominated by collectivist ideologues. Rather than focusing on internal factors, they focus on external factors, and have been peddling this idea that people are so unhappy because they are "alienated" from their natural state by "the system," thus using their entire practice as a smokescreen for political activism. This is because their political position is their own "theory of everything," and this phenomenon isn't limited to politics. For example, Gabor Maté has this strange idea that everything can be explained by trauma, and for that reason, holds to that hilariously outdated idea that bullies suffer from an internal sense of inadequacy. He's gone from doing excellent work treating addiction to talking absolute bollocks and becoming a massive lolcow on Substack.
RE: Infernal Family Systems