Ah, I would only disagree to a small part to that. Of course many parts of Macroeconomics and Microeconomics are bs, but not all of it are. We have just to understand, that a model can deviate very far from reality, but in principle some models are not that bad for picturing a society with its huge interconnected economic dealings inside it. But its just a certain picture of it of course.

The problem with it was imho, that many of those Voodoo Priests who spouted bs, some of them even decades long, believed it themselves at some point and the people around them too. The old story of the liar who lied so long that someday he can't differentiate lie from truth anymore.