Some specifically targeted cuts sometimes help stimulating growth. The idea that they are always the magic formula for growth is just plain stupid.
I bolded the two key words. In complex systems how often can a gross one way adjustment ALWAYS have a substantial desirable effect? I mean even a ten year old could tell us the answer. The question is what kind of tax cuts and where are we on the curve. A marginal tax rate of 90% on people making $80+K can probably be cut and result in generally positive things. A guy with $200 million in the bank and raking in $20 million in retirement and only paying 13%... well cutting that guy's taxes probably isn't going to result in any sort of substantial benefit to the country as a whole.