“Wouldn’t it be nice if everybody was nice” isn’t really an answer, though. There is a reality, which is that a fascist state decided to invade and then rape, murder and kidnap its way through the invaded country. Furthermore, attempts to appease this fascist state by letting it have land have (several times over ) already previously demonstrated the failure of this policy.
So given that reality, merely saying “I wish they wouldn’t do that” doesn’t really cut it. You need to think about how and why the actions you propose would lead to a lasting better outcome. How is “give up and let them have this land without any concessions” better for the invaded people? And that includes asking how it deals with the legitimisation of their suffering — failure to recognise such crimes inevitably results in the perpetuation of suffering down generations.
I agree with the thinking behind this post, but in terms of the practicalities behind this position (and I'm talking about the general position, not asking you personally) how can this be achieved?
"The West" can continue to support Ukraine in the way it has been doing, but (despite initial optimism, some of which was frankly unrealistic) that level of support doesn't appear to be enough for Ukraine's armed forces to push the invading Russians back to their original border, or to force anything resembling concessions from the invading state.
So it appears that in order to achieve anything like a defeat and restoration of what most of us would consider a just peace, it's necessary for the level of support to be significantly increased, certainly in terms of arms and equipment, and potentially in actual deployment of NATO forces.
And given that the West doesn't seem prepared to do that*, the only option other than some sort of negotiated peace, however imperfect that would be, is that the war will continue indefinitely with no significant gains for either side, but with prolonged death and destruction.
Those saying "Ukraine should keep fighting and not consider any attempts at a negotiated peace" need to recognise this honestly, and acknowledge that it isn't really a full answer to the invasion.
* and putting aside for the moment the possible consequences of that sort of escalation.