Consider what it would sound like if you applied this logic to any perpetrator/victim situation, like a rape for example.
Which is completely ludicrous, of course.
For Ukraine, "surrender" means accepting permanent occupation and subjugation.
For Russia, it means they get egg on their face, basically. It will just go back to its corner and sulk for a while. Definitely very doable, as it's something they've done many times in the past.
There's simply no comparison.
And there's no symmetry at all between the two sides in this conflict.
Putin believes Ukraine is not a real country and Ukrainians are not a real people. No agreement is possible when that is his attitude.
> I don't think one-sided demands
There is only one side. This is one of the least ambiguous wars in history.
Or Ukraine can surrender. "Simple" to do, "easy" to achieve, no more Ukrainians need to die.
Disclaimer: I'm not suggesting Ukraine should surrender. I'm saying both Ukraine's surrender and the Russian pull-out are equally hard to do from their respective perspectives.