I’d love to see the cites for those poll results. And it looks like you are equating a partial return to pre-2001 tax rates to genocide and rape. Such a move might not be economically wise or useful, but not immoral.
I'm equating one immoral act to another. Murder, rape, and robbery were all crimes the last time I checked. Progressive taxation is immoral. Whether 9 men decide to take away an unequal amount of a 10th man's money by voting to do it or holding him down directly does not matter.
Having a nice fair vote (or poll) doesn't make the outcome a moral act.