It is hard to overstate how damaging trickle-down economics has been for the American economy. It has eviscerated our tax code and empowered a class of oligarchs that dominate our political system.
Trickle-own economics was always going to be a confidence trick... it was designed as a con... and with all Confidence tricks it sounded plausible, it was created that way to fool people
Those that promoted it were the beneficiaries of the con... but it gave them the narrative to continue to fleece the rest of us.
Politicians are the snake oil salesmen and women... dispensing policies to benefit themselves and there mates... but never us