The super rich knew exactly what they were doing in creating the trickle down theory and selling it to their paid off politicians who inked the deal.
There just wasn't enough people who knew it was corrupt to stop them from pushing it through, possibly enough dems paid off at the time as well. Look at what munchkin and sinama have done in their tenures of being fake dems.
When sheeto mussolini gave himself and every rich bastard that new mammoth tax cut, they all must have wet themselves with excitement, all their money to sheeto paid off big time for them.