What we have learned from this is
Creating a redneck family of 30 being all inbred with an IQ roughly the same number? Not offensive to any farmer/southener.
Creating a Texas character whose entire personality is being a gun loving madman? Not offensive to any Texan.
Creating an Italian character whose entire personality is a restaurant chef who only thinks about food with bad English? Not offensive to any Italians. Creating other Italians who all are a part of a criminal mafia organization? Not offensive to any Italians either
Creating a Sea Captain whose entire personality is being a poor English speaker with pirate tendencies acting like he belongs at a madhouse? Not offensive to anyone in that work industry
Creating a Scottish character whose entire personality is being an eccentric violent alcoholic? Not offensive to any Scotsman.
Making all republicans on show being depicted as Mr. Burns and other evil caricatures having a headquarter in a castle looking like it belongs to Dracula? Not offensive to any republican
Having all nerds in the show wearing glasses and being social outcasts and creepy towards women? Not offensive to any nerd.
Having an Indian character on the show who runs a store which is basically 7-Eleven speaking weirdly? Super offensive and outdated Indian-American stereotype who must be removed from the show, period!!!!!
On top of all of this, Apu has received far more characterization than most other supporting characters on the show. He has never been just a throwaway comedic relief character, he has been the center of a ton of different subjects with dedicated episodes to his name.
On a last note, to every person reading this who supports this outrage. Have you never been to a 7-Eleven were the store clerk was Indian and he didn't remind you even the slightest bit of Apu in the way he talked? Come on, be honest here...