Essentially Ukraine has agreed to become a proxy for NATO in a bid to cripple Russian power. NATO has little lose if this fails, but Ukraine's leaders are gambling the lives and livelihoods of an awful lot of people. I do wish I am wrong and they are right, but as I said elsewhere, I don't beleive Russia will stop at anything not to let that happen.
When I say I don't think it's in their best interest to do so, and that I think they are misjudging Russia's determination if they believe they can win, I'm not taking away their agency. As such, I don't believe my leaders are doing them a service when they are supplying them with weapons and military intel, and if it were in my power, I would stop this supply (all the leadership, and the vast majority of the public, in my country is almost rabidly anti-Russian and pro-NATO, so this is an extremely theoretical exercise).
In the end, I believe NATO is playing chicken with Russia, but putting Ukraine in the speeding car instead of driving it themselves. I don't think this is wise, and definitely not good for Ukraine.
And Ukraine reminding Russia that they will fight to the death and leave scorched earth behind, so invading will cost more than they earn isn’t a major strategic goal? I don’t have a problem with the justifications you have on Russias side of the argument, it’s just that you seem to view that as inevitable so the Ukrainians are the ones being unreasonable by providing any resistance. They both are trying to accomplish strategic goals here and Ukraine didn’t decide on war just because they were “goaded”