This says a lot, actually. "When they actually attack a NATO country...", then we'll have to "choose" whether to honor our treaty obligations. Only somebody who would be willing to renege on those obligations would characterize it in this manner.
For what it's worth... I'm at least as tired as Aquapong of seeing our soldiers die overseas for no (or little) good reason. Aquapong may not have noticed that there are no US soldiers deployed to Ukraine — and part of the reason we support Ukraine's self defense with military aid is to assure that Putin's expansionism does not go from Ukraine to Estonia, or Latvia, or Poland — where US soldiers would be deployed (unless we reneged on our treaty obligations, of course).
MIlitary imperial expansionism has led to two world wars in the past century or so. Nobody sane wants to see a third such conflict. In my opinion, there is no better way to assure such a future conflict than to stick our collective heads in the sand, wail about "America First," and pretend it's not our problem until it smacks us in the face. We have the opportunity to stop Putin's expansion in its track, and to do so without committing American lives. Appeasing Putin because we want another tax cut, or because we just want to "stick it" to whoever is in power in Washington, would be hugely short-sighted and foolish.
Aquapong argues that no administrations in Washington are interested in reducing the national debt. I have to point out that there have been years where we ran a current account surplus (but only in Democratic administrations, unless you go back to the Eisenhower Administration). There have been administrations that have reduced the annual deficit significantly, and others that have expanded that deficit significantly. You all know which administrations have done these things, although I suspect some will want to rationalize that reality away because it doesn't jive with what you want to believe.
I agree with Aquapong that the US cannot police the world — and that there are places where we really do need to reduce (or eliminate) our military presence. (Central Africa comes to mind, as does the Middle East.) But failing to confront aggressive military expansionism in Europe? We've seen that show before.