A lot of people in this thread don’t seem to get the reason why people are offended with Apu and the showrunners’ responses - sure, the Simpsons is a parody of white America, but the majority of the writers are white American who base the comedy off the crazy experiences of other white Americans.
They’ve also written many episodes where they travel overseas, such as Japan, although in those episodes they would have had input by actors with backgrounds in the countries they visit (like George Takei in the Japan episode, for instance).
Apu was written from the very beginning from the perspective of white American writers whose only exposure to Indian American immigrants came from convenience stores. Not only that, Hank Azaria most likely based his accent Peter Seller’s take in The Party, which in itself is a hugely problematic film in terms of its brown-face portrayal.