So the only reason that their income doubled was because of the 1/3 tax cut? Nothing to do with undermining the middle class jobs of the US in favor or slave wages of foreign countries (and much higher incomes and profits) while at the same time pushing for lower taxes for the lower and middle classes to make up for the shortfall of income (even to the point of going negative on taxes - EIC - to make up for the loss of consumption). Throw in consumer debt and now you have a double temporary 'win'. You have higher profits from cheaper labor and even more profits from giving your former employees credit so that they can continue their lifestyles.
Of course, you could say that the 1/3 tax cut gave those at the top the much needed capital to build those new factories in China/etc. to help push the jobs out and move their incomes higher. Probably would be truth to that.
But of course, the above didn't happen and it was only tax cuts that allowed them to double their income.
The reason that the top 1% are paying more of the share of taxes is....
and this (worker's share of national income):
Sure, they have lower tax rates but the "bottom class" has been removed from federal tax rolls because the government, in its' effort to subsidize their income, has went negative on the tax for them. Of course, now we have a debt/deficit issue and people are focusing on getting those at the bottom to 'pay something'. That would be 'more fair' than getting those at the top to 'pay more'.