The progressive income tax belongs in Marxist societies and not in an American republic which is based on personally liberty. In fact it was one of Karl Marx’s planks in the Communist Manifesto.
Such a tax scheme seeks to redistribute wealth from those who work hard, succeed and even maybe get a little lucky to those that covet the wealth of others for any number of reasons. Note that it does not tax the wealth that is inherited from preceding generations and only punishes those that currently work hard. Thus this tax falls disproportionately upon the middle class who are working hard and succeeding at becoming “rich”.
This is wrong and such a system has no place in our society and ought to be abolished.