The US does not have a taxing problem, it has a spending problem. Even if the President got his wishes his tax increase on the "rich" would not net more that the US deficit spends in ONE month. If you tax 400K+ it only returns a possible 70 billion more PER YEAR!.
Worse, instead of using these taxes to reduce the deficit they already have new spending lined up.
So, sorry I feel that even twenty percent is pretty bad. It means for over a fifth of the year I am not working for myself. Since my effective is near thirty percent I spend an incredible amount of time working for someone else.