@michal I'm not sure what's covered by Reaganism. There was "Reagonomics", which held that if the corporations are making money, that will "trickle down" as they invest that money.

IMO that only worked when we had a tax code that gave lower tax rates for specific investments. In my time, those investments were arranged by Congress to be things which benefited society as a whole. That, too, is gone now. Partly, I think, because schemes using multiple countries' tax codes to pay nothing in taxes.