your assuming that those income groups care enough about the USA to pay.

They don't. I suspect this would be true regardless of how the money has been, or would be, spent.

Human nature, being what it is, tells me that the wealthy would prefer increase their wealth with out having to pay taxes rather than dig deep and save the Republic.

Since Reagan( before actually) conservatives and like minded economists have hammed away at the specter  oftaxes and the so called "global economy. " If you tax too much the wealthy will leave and take there money with them" and so forth.

All things being equal, that would be true.  Particularly if your place of residence was purely based on economic issues. Like labor and manufacturing, people would always chose  low cost country.

Things aren't equal.  There are plenty of countries on this earth that have ultra low taxes and no government to speak of. You have the economic and personal freedom to do what you want...as long as your security force has tactical superiority in what ever area you happen to be in and your inoculations are up to date ...and you bring plenty of food...ammo...oh yeah a water purification plant...mosquito net.

You get the idea. Unfortunately, the wealthy do not.