Nonsense, Russia can't and won't attack any NATO country. Russia does not have the means to stand up to NATO in either conventional or nuclear war. It would end them. Their expansion is limited to Ukraine and they're struggling there. Your hypothetical trillions to defend and scare mongering about an "emboldened Russia" are just fiction.
We sent $24 billion just to prop up Ukrainian government salaries to the end of December 2024 alone, parasites.
We are getting low on several critical munitions because we're wasting them on Ukraine, and Ukraine continues to lose even now. It's good money after bad, a waste. Zelenskyy and his oligarchs have his gravy train from fighting Russia down to the last Ukrainian and last acre of Ukraine.
It is not cost effective to waste our money and munitions on a losing war.