The simple version.

Corporate and personal tax cuts are either hoarded or invested in speculation. They are not used to increase production.

Well, what did we see after the Bush Tax Cuts? Hedge funds, speculative investment with the surplus monies. When they collapsed, Obama had to prevent them from collapsing.

Are we seeing jobs? Of course not. Was employment good during the Bush years? Of course, "liar's loans" drove construction, wars drove employment, and no one was paying for anything.

And it collapsed into Obama's lap.

As the middle class is killed off in this class warfare there will be less and less spending, and a poorer economy.

And funnelling money to the wealthy does not create jobs. We've seen that in spades.