They are not nazi because they are Ukrainians. They are far-right ultras with real swastika tattoos and ideolody. And they are not only in that batallion, they are in Government, and the head of the Army. Moreover they are supported by US and is the most powerful fighting force in Ukraine.
If you try to dismantle them, you'll die like Kireev https://www.mirror.co.uk/news/world-news/hero-ukraine-peace-...
Some more quotes from the article
"Reports published by the Office of the United Nations High Commissioner for Human Rights (OHCHR) have connected the Azov Battalion to war crimes such as mass looting, unlawful detention, and torture"
"British political scientist Richard Sakwa writes that Azov's founding member Andryi Biletsky, leader of the neo-Nazi Social-National Assembly (SNA) made statements about a "historic mission" to lead the "white races of the world in a final crusade for their survival ... a crusade against the Semite-led Untermenschen", an ideology he traces to the National Integralism of 1920s and 1930s.[96] Political scientist Ivan Katchanovski has compared the group's ideology to that of Patriot of Ukraine, saying: "The SNA/PU [Patriot of Ukraine] advocates a neo-Nazi ideology along with ultranationalism and racism. The same applies to ... members of the Azov battalion and many football ultras and others who serve in this formation."[97] "
While I think, that this invasion is a big tragical mistake, the political life of Ukraine is very very far of what we call "peaceful democratic country"
[edit] - they are not in parliament since 2019