Fantastic. This is an anti-capitalist proposal, and would not be good for the economy. Attacking the upper class will not save the lower class. If the upper class thrives, there will be jobs and more economic opportunity for all.
Pure trickle down economics doesn't work.
But the idea that just taxing the rich will solve our economic problems when no one has given a serious proposal to how they'd balance the budget and reduce the debt with the additional revenue is naive. Everyone wants to give the goverment more money when they've shown they arley make efficent investments with that money.