I’ll admit I was rather ignorant growing up and the first time I had a conversation with someone and I pronounced Iran as “I ran” everyone roasted the shit outta me and shut me down, which like fair whatever. But my point is the pronunciation is secondary if you get the concept; that’s kinda the point of language and accents in general. If we have to pronounce every country or place as its residents call it then we should roast and ignore every English speaker that says “Germany” instead of Deutschland.
Brings to mind the Afghanistan -> Offhkhahneestahn and Pakistan -> Bockuhstahn thing that people do to sound worldly. Better not say mozzarella as “matzarella” unless you want to hear about their trip to Italy. Again.