US conservatives seem to still believe in the concept of 'Trickle Down Economics', while it has shown very limited results in the past and if anything, it only made the rich richer and the poor poorer.
Why do US conservatives support Trickle Down economics policies, while it has shown to be very ineffective in improving the economy, over and over again? (as shown in Is there any record of Trickle Down Economics improving the economy?)
Since this question is asking for the 'why' they still believe in it and it's not asking for whether it has ever worked, therefore it's no duplicate of Is there any record of Trickle Down Economics improving the economy?.