I agree that Russia invading didn’t help anyone as terrorists are still striking Donbas as far as I’m aware, but they ARE trying to change that, which Ukraine had all the power to do prior to the war and which Western European powers could have invested just a tenth of what they did towards the war effort in putting a stop to.

and there’s no resolution in sight

Now that’s not true; there was an attempt at a peace plan about a year or two ago that we and the UK blocked, there’s also the peace plan now that people are trying to push for. You may not like the term concede as your initial post stated, but I would hope you would also support this peace plan regardless because it would end the war. Myself I would be fine with Ukraine keeping their territories provided they can prove that these regions will be safeguarded from future attacks and that the people there will be allowed as much autonomy as any Ukrainian city and the safety as well, but we both know they won’t. As I said, this war could have absolutely been avoided if Ukraine had simply administered their anti-terrorism laws; if a similar situation happened back home, do you think our government would have allowed such terror attacks to go on for eight years? Whether Russia or Ukraine controls the territory, I hope both our concerns are aligned in that the people living in these territories MUST be guaranteed safety.