I think this reinforces their point. While it's certainly an extremist group, many of them don't explicitly identify as Nazis. They are something else that have ideologies that may overlap with Nazis, but it's incorrect to call all of them Nazis.

It's important to be accurate and reasonable in these cases. If a group that disagrees with another group makes a claim that is not realistic or simply incorrect, then it makes them less credible, and that weakens their voice.

Additionally, the Nazi party did some nasty, nasty things. If these people are called the literal title of Nazis, then it dilutes the true evil from the history of the real Nazis. You can say they have Nazi-influenced ideologies, or you could call them fascists, but Nazi is a very specific thing.

By the way, Putin overreached the definition of Nazis as a deciding factor in his initial speech about invading Ukraine. I won't make any commentary on this. Just think about that.