Less than ten years earlier the Russians of the Soviet Union killed millions of Ukrainians and others in the Ukraine in what is now termed as the Holodomor genocide. Consequently, many Ukrainians were grateful to almost anyone no matter how nasty who would help them to avenge Ukrainians against the people who murdered millions of Ukranians by the artificial famine, political terrorism, and police state executions.
The thing about wanting to exterminate Jews didn’t particularly bother most Ukrainians at the time. Many of the apparatchiks involved in Holodomor and the razkulachivaniya programs had been Jewish and between Poles, Ukrainians, and Jews there had never been much love lost. Ukrainians often spoke of ridding Ukraine of both the ‘Yid’ and the ‘Yack’ (the Jew and the Pollack)... There would be something wrong if there were not some number of unreconstructed Nazis walking around in the Ukraine but, by the same token, every family in Russia lost at least one person to the Nazi onslaught and there is no reason to think Russians would be happy about Nazis taking over the Ukraine now.