Doesn't sound to me like Zelensky and Arestovych are some sort of lapdogs of the west who would want to stop the war if they'd just "break their chains".
PS- Kissinger is a

. Always has been. Always will be.
Ukraine Slams Idea of Swapping Land for Peace - WSJ
"Mr. Kissinger, speaking at the World Economic Forum in Davos, Switzerland, had said that “ideally, the dividing line should return to the status quo ante,” suggesting that Ukraine should allow Russia to retain the Crimean Peninsula, which it annexed in 2014, and swaths of the eastern Donbas region seized by Moscow-backed separatists the same year.
Mr. Zelensky described Mr. Kissinger’s suggestions as on par with attempts to appease the Nazis in the run-up to World War II.
“I get the sense that instead of the year 2022, Mr. Kissinger has 1938 on his calendar,” he said in a video address Wednesday night. “And that he thought he was addressing an audience not in Davos, but in erstwhile Munich.”
In an expletive-filled tirade broadcast on his YouTube channel on Wednesday, Ukrainian presidential adviser Oleksiy Arestovych called those who say Kyiv should relinquish land “crazy.”
“Get lost with suggestions of this sort, that Ukraine should trade some of its territory,” Mr. Arestovych said. “Children are dying here, soldiers are stopping shrapnel with their own bodies, and they’re telling us to sacrifice territory. It will never happen.”