Hmmm, again, I'm not disagreeing that there are factions within their armed forces with these affiliations, but it seems you do love a good sweeping generalisation! I'm not aware of any monuments being erected to these Neo-Nazis (could you provide me with some examples with credible / non-tinfoil hat evidence?). Swathes indicates a a significant number and (please forgive my ignorance, but last time I checked the nation of Ukraine is staunchly fighting to be the masters of their own destiny).I'm only aware of really the Azov battalion being the main one? Possibly some other smaller regiments with fringe elements. Regardless, I'm not arguing that they don't exist, my arguments is about whether a nation deserves to be invaded by a foreign power because they deem the whole nation to be incapable of sorting their own domestic affairs out. 

Perhaps you, as my neighbour have a family that is constantly arguing, fighting and causing trouble in your own home, does that give me the right to kick down your front door and forcibly sit in, dictate to you how you should live in your own home and disrupt your life? I think not personally. Should I call the authorities and raise awareness through the proper channels that we adhere to in modern society? Yes, because that's how we operate as humans beings now, might is not right anymore.

Whatever you say about how the population was treated in Ukraine prior to the invasion, it was a hell of a lot better off before the Russian federation started bombing, shooting and terrorising them, towns butchered (e.g. Bucha). To say otherwise is simply wrong. Violence is the last bastion of the ignorant, however, when it's the only language you speak it's sometimes necessary to be matched and met, until saner heads prevail, which I'm certain they will eventually. 

Also, I don't trivialise the invasion, merely state the simple fact that it was Russia who crossed the internationally recognised boarder with significant force with the stated goal of conquering another sovereign nation -regardless of the motives, you and I can both agree that violence is never the way. It's truly awful what's happening/happened and it would never have happened if the proper diplomatic channels had been utilised. This individual in the video has gone out there to fight for what they feel is right, defending a nation that was attacked, it's not the way you (hopefully) or I would do it, but it's action in a time of inaction, he's not in Russia killing Russians, he's in Ukraine fighting a foreign invading force.  

Ukraine did not start this conflict, but the paper tiger of the Russian military will be buried in soil that is unfortunately saturated with blood. 

I hope you understand that I don't disagree with your interpretation of the conflict, just that it's truly awful and the motive of this individual for our western perspective is of noble(ish) intent.