Economics is purely based on assumption, at it's core. There's no proof the assumption is true, and recent trends seem to point towards it being false.

Economics assumes people are rational spenders.

But the "economy" is often just represented by the stock market, which is both not rational, and not a good measure of the economy. It's a great indicator of how much wealth is being extracted from the working class, but it's shit at representing how most of the money is being spent.

Economics all makes sense when you understand that they are being paid to produce data backing up the position of the person paying them.

Social "sciences" are the epitome of opinions being pushed as fact via the appeal to authority fallacy. Much of what falls under that label are baseless belief systems built upon towers of lies