https://en.wikipedia.org/wiki/World_War_II
Now remember that this time everyone has nukes.
All these platitudes about “interests” and “soft power” seem to be predicated on an assumption that nobody is willing to articulate. Are we all expected to be Francis Fukuyama cultists here who take it as axiomatic that it’s in america’s interest to defend the borders of european countries? If that’s the argument, then I guess we’ll have to agree to disagree. Because I happen to think liberals have actually been right on that issue since the 1970s.
(a) trade with other EU partners that depend on Ukrainian food imports, gas transshipments, etc., and also on those trade partners. y'know, not being embroiled in trench war on their eastern front.
(b) trade with APAC partners that depends on EU partners that depends on (a). Even the most blatantly obvious ASML -> TSMC -> NVDA -> FAANGetc relationship transits that entire chain.
(c) the entire web of mutually beneficial international trade that benefits from (1) a more or less stable system of borders and laws and (2) again, participants in said system burning the minimum amount of blood and treasure trenches.
So what is it you really think? US involvement is unnecessary to maintain both its current position and the rest of the international system? Or that system unnecessary to maintain the state of the world today, and some alternative arrangement would be preferable? And we can smoothly transition to your preferred system with a belligerent Russia?
I'm being a bit unfair in the preceding paragraph, so I'll ask in all sincerity: what's your alternative policy in 2014? 2022? now? what outcomes do you predict under your policy? Who is (dis)advantaged?
You just ask question after question after question after question, with an extremely disproportionate amount of effort required between you and the person you are asking, and hope that the other side eventually gives up.
Edit: jakelazaroff pinned it down for me, "sealioning"
We know the amount spent in support of Ukraine. The only missing piece of the puzzle is the specific dollar valuation of the deterrence value of further assistance to Ukraine to resist the Russian invasion.
If Ukraine regaining its pre-2022 (or pre-2014) borders is not worth a dollar value that exceeds the cost to achieve that outcome, then vardump's assertion of "money" as the reason is insufficient.
The full global consequences can be devastating.
What's the dollar value of that?
Sometimes your questions seem legitimate. Often they don't (they might be! but they don't read so).
But, this is probably getting a bit too meta and off-topic. Sorry for the derailment.
Likely as it is that research can indeed confirm this, given the depth & tone of your inquiry, perhaps the most immediate convincing experiment would be best: find someone you can employ to harass and threaten your property and your person, occasionally to devastating effect, alongside another person who can study your productivity and wealth before and after.
Perhaps with further similar efforts here you can even persuade some people to volunteer for half of that project free of charge.