Thank you for the good faith response, promise I'm not a parrot for anyone lol.
In my (uninformed) view, it isn't so much that, "Ukraine only has Nazis capable of fighting", so much as it's, "Russia is a way bigger country with a larger army, we need literally everyone we've got, even the Nazis".
Like if the entire country was rallying behind a Nazi flag and they were tossing people in concentration camps and making plans to genocide another group it'd obviously be a different story, but they're trying to kick people out of their own land, and as far as I know (again, not terribly far) they don't have plans to keep going afterwards. If that were the case... Yeah, maybe Russia should just take em all out. Not a fan of Russia, but less of a fan of Nazis.
The Hitler analogy isn't a fair one because Germany was an aggressor. The argument can't be made that they were in the same situation that Ukraine is in.