There are so many false assumptions and fallacies in your statements that I can't deal with all of them.
Actually, I was not all that big a fan of the Bush tax cuts. They had limited supply side benefits. Too much of the cuts were wasted on things like subsidizing big families, etc. The dividend tax cut perhaps was good economics but poor tax policy, as more bang for the buck could have been had elsewhere, eg by eliminating cap gains taxes. In truth, it was a payoff to the the coupon clipping old rich. The problem is, as even McCain recognizes, repealing them would constitute a huge tax increase.
To address your fallacies, I would say there are two things you ignore. One, the economy is not a fixed pie, where cuts for one group necessarily come at the expense of another. Some cuts, such as cap gains, tend to pay for themselves by generating more activity or by encouraging more investment, which grows the economy.
Two, the so-called rich pay virtually all the income taxes as it is. Necessarily, any cuts will benefit them disproportionately, as they pay disproportionately. But they are not powerless if their taxes are raised, as Obama and the democrats promise. They can shift funds to tax free bonds, for example. They can take money out of productive investments and put it in beach houses. They can move it offshore in extreme cases.
If Obama were to limit his increases to CEO's who were ripping off stockholders with enormous comp packages, I would be all for it. That won't happen though. The bulk will end up being levied on upper middle class taxpayers, just as Clinton's was. In democrat lingo, anyone making more than a schoolteacher is by definition "rich."