As a person living outside of US I appreciate those 12 cents from you much more than 0.004. US provides at least some level of global security and I don't want this role to be taken by any other country. As for art, I always can look for other options.
I would rather your own country pay for your own defense (and join NATO for a boost) but if the USA has to be a hegemony rather than Russia or China, I can see your point.
We have enough money to do both! I like that the US military is a military superpower. And I like finding art (and healthcare, and a bunch of other things). If we stopped giving uber rich people unearned tax breaks, we could afford to do them trivially.
What global security? The military has done more harm than good and the reason no one fights back is because of how mighty it is and the IMF. Look at Afghanistan and Iraq, did it leave it better off? Or its influence in Latin America. How's it's going in Ukraine, other than selling weapons? You don't want the US to "protect" you.
