I've read the resolution, and I don't see anything in the document that I disagree with. There are some references to the Durban conference in there that I don't fully understand, but from a cursory reading of the Wikipedia article it seems that people's main gripe with it is its anti-zionist position (a position I vehemently agree with, Zionism is colonialism and genocide). That, to me, seems like a reasonable enough explanation as to why the US would vote against this resolution (I hope I don't need to, but I'm happy to elaborate), and that, in turn, explains why client states voted against (or abstained).

I do acknowledge that the rhetoric closely mirrors Russia's anti-Ukrainian propaganda, but just because a bad person misuses "nazis bad" for nefarious purposes does not make "nazis bad" any less true.

It's a bit ironic on some level when talking about an anti-nazi resolution, but having looked into it, I've arrived at the position that the votes are the way they are because the US tends to vote in favor of Zionism.