I think the issue of "fairness" has been moved to the front of the discussion, because of the numerous times "fair share" has been used as a justification for redistribution. If "fairness" is taken out of the equation, what's the justification for redistribution?
That brings us to your economic points. First, I disagree that the drive among the rich is to hoard their money. That would be a foolish thing to do. Investors are looking to increase the money they have by making profitable investments, or at least try to make enough to ward off inflation so they don't lose money. If there are good investments to be made in the US, the rich will make those investments. If there aren't, they'll look elsewhere, but invest they will.
Second, if lots of money is printed, causing inflation, the value of any horded money falls just as quickly as any other money. Inflation hits everybody at the same rate. It's a hidden, flat tax with no consideration for your wealth or lack of it.
P.s. Concerning your fear that we will "overfish" the economy, I don't see it. It's not as though there's only so much "value" or wealth in the pond. People who provide things that are wanted, at an affordable price, benefit the consumer and themselves. We, as a nation, and even as a world have become steadily richer as people have added value through their brains and their muscles. - C -
edit on 31-10-2012 by charles1952 because: add P.s.