I suspect that “progressive” politics is at its core basically a means of cartel formation. Adam Smith theorized that actors denigrated their own trade to keep people from wanting to become actors, thereby lowering the number of people who end up becoming actors and increasing their own wages. Maybe left-wing politics serves the same purpose. They always seem to be weirdly strong in trades where there is a huge amount of demand for those positions, professorships, creative jobs, government service, etc. If you can’t keep others out by lowering wages, thereby defeating the whole purpose of the trade, you can maybe keep people out by making the prospect of working with you so toxic that most people will just stay away. Maybe leftism accomplishes this by deliberately crafting political and social viewpoints utterly alien to the vast majority of people.