Who gives a shit if the voice actor isn't indian ? It's called ACTING for a reason dumbass ...
Except he's not acting Indian. The same way minstrel show actors weren't acting like black people. The same way Mickey Rooney wasn't playing a Japanese character. It's not that Azaria is not Indian. It's that Apu is a racist charicature rather than a character. To the Simpson's credit, they did try to remedy some of that over time, and they humanized him as much as possible, but it's still a minstrel show. It's still Al Joleson.
There's a reason people are targeting Azaria's Apu with more concern than not Danny Pudi paying Abed Nadir. Sure Pudi wasn't Palestinian like his character, but they didn't trip overthemselves to shoehorn as much stereotype into the character as they could. Mulan is going to be full of non-chinese actors, but you wont see a bunch of white dudes doing a Mickey Rooney bit so people aren't making a big deal about it.
There's a difference between race related humor where the subtext is "look at how strange and absurd our racist beliefs and institutions are" like Chappelle's Show and where the subtext is "look at how stange and absurd other kinds of people are". One is punching up at larger ideas and institutions, one is punching down at people who could use a little honest representation. There's room for those waters to get a bit muddy, but that's not what Apu is.
Like, if you were an Indian-American kid in the 90s, where did popular culture tell you you fit in to society? Apu was the biggest representation of you and it's a white guy doing a racist ass impression. I guess it's better than nothing, but I'm honestly not sure.
I have a LOT of reservations about PC culture, and I can't wait this wave of virtue signaling BS to end, but it's not being a snowflake to be offended when someone farts in your breakfast, and it's not being a snowflake to say 30 years of this particular minstrel show is probably plenty.