So then suggest that he use this instead or something: https://www.spigotmc.org/resources/donkey-mule-duplication-exploit-patch.37987/
Don't outright leave the server
This is even worse than "socialism is when the government does stuff"
First - read this and tell me where does it say "fascism is when genocide"
https://www.amazon.com/-/es/Benito-Mussolini/dp/1682040054
Second, Fascism isn't inherently racist, look at the Brazilian Integralists that were (and still are) openly Anti-Racist
Third, not all Fascists states were Militarist, Mosley was a pacifist for example
The app VoteOne has a political compass quiz with ideologies on it. If you tap the ideologies it gives you a description of them and some reading for that particular ideology.
It's by no means comprehensive, but it could be a good place to start?
Other than that I'd honestly just recommend wikipedia, although it can be a bit dense.
https://play.google.com/store/apps/details?id=com.sipols.politics if you're on android.