That cedeing to a country that openly plans to retake its former Soviet borders will somehow dispite all logic result in Russian withdrawal and lasting peace.
If anything, the initial proposal was about Russia cedeing territory that it has captured (since 2022 invasion) to Ukraine, not the other way around.
No one has stopped those
No one has been doing any serious peace talks after the initial ones either.
You sure it isn’t the people literally blowing up Ukrainians
Those as well, but you have to deal with more immediate problem first.