Reminds me of that Mr show skit, where the White supremacist runs a hate group full of every ethnicity and they are all friends but still want a race war. Like we want French ethno state through working with other nationalities!!
It starts making sense when you keep in mind that these people dont necessarily want to kill all other ethnicities, just for them to get the fuck out. I believe most subscribe to the ideal scenario of ethnostates, whom might even be friendly towards another (as long as everyone stays where they belong).