@FreeDuck,
I'm trying to put some thoughts together, while avoiding the political.
First thing that comes to mind is the obvious (to me). If you are going to pay for it (all that stuff), you have to raise revenue. If you don't, you just can't have it all. Alternatively, you can finance it by debt, leaving the question of who is going to pay or service the debt to another generation.
It does look like some of the confusion comes from a misunderstanding of the Laffer Curve. A tax rate of zero produces zero revenue. A tax rate of 100% also produces zero revenue, just because (barring black markets) nobody's doing anything to produce a taxable revenue. At any rate between 0% and 100% tax rate, there are two rates that will generate the same revenue. The lower rate stimulates economic activity with more revenue to be taxed. The higher rate inhibits the economy, but what there is, is taxed like crazy. Now, Laffer was looking at the effect of taxes on economic activity for a given revenue collection. He never tried to predict increased taxes from lowered rates.
The real way to get more of what we want is to make things better and cheaper than anyone else, or provide better service at a better price than anyone else. It isn't happening, generally, so I guess we just can't have it all.