system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: Why are there so many Neo-Nazis in Russia?

I know from history classes that MILLIONS of Russians died in WW2 against the Nazi invasion from the west.

Isn't it ironic that there are so many cases of racism in Russia today attributed to mostly Neo-Nazis?  These people follow an ideology that led to the deaths of so many of their own people.
gpt
Neo-nazism in Russia isn't about adherence to Germanic Nazism. "Nazi" is short for "Nationalsozialismus", German for national socialism. The neo-nazis in Russia are nationalistic socialists, who share an adherence to violence and ethnic identity. 

It's like having a nuclear weapon, it's fine if you have it, but not when the other guy does, and their thinking makes for a lot of "other guys".

Edit : 

Little-n nazism (nazism in general) tends to arise when there are harsh economic climates and people suffer as a result of those economic problems - when the government is unable to prevent widespread hunger, homelessness, illness, etcetera, and is seen as corrupt and unaccountable. Russia's government is just that way.