The Neo-Nazi rhetoric re: Ukraine seems very overblown to me. Svoboda, the ultranationalist political party in Ukraine, received under 2 percent of the vote in
the same election that Zelensky came out the victor in. That's not exactly a robust performance for the far-right.
Some "anti-imperialist" commentators seemingly cannot talk about Ukraine at all without bringing up Azov Battalion or some other marginal bonehead group. It also ignores the fact that Putin's Russia has increasingly relied on nationalist/chauvinist and far-right elements within the state to shore up their own position after 2014, with the hilariously-named Liberal Democratic Party being put into service for the Kremlin in this way...much in the same way that Ukrainian government was permissive with nationalist and far-right militias after Maidan and subsequent developments in Crimea and Eastern Ukraine.
There are Neo-Nazi boneheads in Ukraine, of course, just as there are in Russia. But it's a marginal fringe political movement, and it's just a weird thing to focus on imo. I get why he's doing it, though, it's the kind of crude, lame propaganda that the former Soviet Union used to specialize in