re: Yes, you do offer a pretty silly argument
I have no real idea what you're asking, concepts like rich are well enough defined in economics. It seems to me you are suggesting that many people defined as rich are not really well off. That may be true but in terms of the tax cut distribution it was worked out on strict percentages, as to what income people had compared to the total population.
As I said in another thread you have never received a tax cut but a tax loan. All the tax cut did was add to a structural deficit that is projected to not decrease as the economy improves. That just means that you or your kids will have to pay it back one day. To get control of the deficit at some stage somebody, Republican or Democrat will have to tax enough to get this back plus interest.