This is a long thread at this point, but I'm not going to read it. I'm just going to answer the OP.
The problem is you are thinking in the box. The government cannot possibly spend enough to get an economy the size of the American economy go. The best it could to is keep it in a sort of economic purgatory.
The best "expenditure" of funds for the government is to forgo revenue. A sensible set of tax cuts aimed at unleashing the American private sector. R & D tax credits are great for this. But there are many that are good. This is not enough though. There must be regulatory certainty. We are still suffering now primarily because of regulatory uncertainty. The government has written tremendous checks that private industry must now cash. They don't know how much it is going to cost them yet, so NOTHING is going to happen. No employment, no improvement in the general economy.
This is the answer to your question. Not more or less socialism/communism.
it is a bit of a long thread... plenty non sequiturs of interest.
could what you've proposed be part of the problem? one discussion focused on the fact that our economy cycles through eras where solutions like the essentially reaganesque conservatism you've proposed run their course and amount to the problems to which new solutions must developed and applied.
reaganomics is still running its course, but is looking a bit winded with raise-and-bust interest rates and a massive public debt. deficit spending is habitual - irrespective to the economic cycle. all this is well jaded and its only been 30 years.
even if you don't buy history's lessons about these cycles and our reliance on economic innovation when they transpire, do you buy that there is simply no more room to squeeze more returns from tax-cut conservatism?
You are correct in so far as identifying continual deficit spending as a significant issue. However, attempting to use an ever increasing (for that's what government does) central government upon which both socialism and communism depend. Additionally, human (bureaucratic) decision-making is inadequate to the task of allocating the resource of an economy the size of the US. This has been proven everywhere it has been tried. As slow as the market is to correct itself, humans are slower.
What history also shows us is that while Reagan's spending program and tax cutting was a problem, that problem was created because the House of Representatives (Tip O'Neil) demanded that in order to get the programs the President wanted, he must give them the programs that the Dems wanted. (Log rolling). So, despite Reagan's inclination to cut the deficit, he could not get that done if he wanted his other priorities to be funded.
Eventually, when Clinton was elected and the House and Senate switched to the Republicans, something more in line with Reagan's plan took hold. Although the spending priorities were different under Clinton, economically, that makes little difference. The result of fiscal restraint in the Congress and economic expansion created by a fairly stable regulatory environment and reasonably low taxes (although increased from the Reagan era) was a near surplus.
This opportunity was destroyed by the combined effects the dot com bust, the corporate corruption scandals that were occurring in the late 1990s and burst in 2000 - 2002 and of course 9/11.