The US, by all evidence, spends more on its non-universal, gap-prone, healthcare system than any reasonable (single-payer, government-provided, or mostly private insurance with universal guarantee) universal healthcare system would cost; the US spends ludicrously more than any other country per capita, and much more than most universal systems on a per GDP basis (heck, the government side of the US system alone costs a greater share of GDP than some universal systems, and more per capita than basically any of them, even without counting the larger private side.)

The US doesn't deny local citizens healthcare so that some people far away can be blown up. If anything, it limits its ability to blow people up far away with all the extra money it is spending locally to prevent people from getting healthcare.

But the US has lots of money, so it still finds quite a bit for blowing people up far away.