Image description:
"Preaching to the mob" meme template based on SrGafo's comic.
First panel: Person standing on a rock: "I'm in favor of a genocidal ethnostate"
Second panel: Reaction shot of a mob with an assortment pitchforks and other weapons looks really angry. Each figure is marked with the German flag emoji.
Third panel: Person standing on the rock: "For european jews"
Fourth panel: The mob looks really happy.
Well, according to your definition, Israel is not an ethnostate, neither Nazi-Germany. In both cases, other nationalities are tolerated but with less right (i.e tourism, forced labor). So I do not agree with this definition, even though their is a national supremacy.
I didn't mix the citizenship and nationality on purpose. People are radicalized even with citizenship, and th upper-class could access to citizenship even without being assigned to a nationality.