That’s not how discrimination works. Anyone can play Apu (it’s obviously not illegal or banned by the company or anything), but it could be problematic. Think of an impressionable young South Asian kid watching the Simpsons and listening to a white dude with a thick fake accent pretending to “represent” him. And if you’re okay with that, what’s wrong with looking the part in filmed TV/movies? Then it’s blackface again with white men used to exclude and stereotype other races and nationalities…