How does Ukraine start negotiating with a country that has invaded theirs?
For the sake of peace, yes, I think they should be willing to make concessions. That’s how negotiations work.
If you refuse to offer anything you aren’t really negotiating. You’re just issuing demands with no exchange.
If the alternative was that they would rape, kill, and kidnap my people for the next 20 years without end?
I’m not willing to fight this war to the last Ukrainian.
Say they do negotiate peace, what do they do next time Russia wants to invade?
Give more up?