LordsFire
Internet Wizard
I can assure you no US diplomat would casually say "We can't do that".
Especially if you sre asking a country to give up part of thier country.
Elon is trying to do what Macron tried early on.
It didn't work and the Ukrainians cussed him out as well.
When you are under war, you stop carrying about pleasantries. Ask anyone who deployed if they were stopping cussing
When you are a diplomat, you do not tell someone who is already giving you tangible important support to 'F off.'
You say something like, "Sir, I respect that you want the fighting and killing to end, but I can tell you with absolute confidence that if Russia is not forced completely out, more people will die, both during their occupation, and when they make their next move to grab more of the nation in a few years after rearming and reforming their military."
You make it clear that you cannot compromise on this, why you can't, and you do so while maintaining cordial relations.