The US being a country that prints its own currency and isnt tied to any trading partners the way the European Union is, our government can basically create infinite debt and it sorta doesnt matter. Very abstract concept that I don't grasp. But yeah we can afford it, we just print money or whatever. Also billions is not a lot of money, and that money was already being allocated to the military budget, and that money was earmarked to help our military industrial complex which it is absolutely doing.