Yes, Millionaires need to pay a higher share of their income than do poors. End of discussion.
Actually in a thread I created a few months backed up with data, the US has the most progressive income tax structure in the world - in fact the most progressive tax structure period in the world. It is the middle class that is the most dramatically "under-taxed," relative to other major industrial democracies. But then you already knew that I suspect. This stuff about repealing the Bush tax cuts for the rich, or whatever the F Obama wants now in his new incarnation, is just noise. Maybe it is a fairness issue for some, but it certainly isn't very fiscally relevant.
Well, it should have a progressive income structure, though I have a feeling small businesses get slammed the most. Let's repeal ALL of the Bush tax cuts and get rid of most deductions. Then we can see where we stand.
IIRC the US only takes in 14 or 16% of it's GDP in taxes. That needs to be raised, and it will be better accomplished by ending loopholes and deporting all lobbyists to Guantanamo.