They probably don't care about any of that since they think it's just appropriating some anime and by casting a non-Japanese person as a Japanese character, it will be racist to them, regardless of what most of the Japanese fans would think (I'm sure they'd despise the movie if it were terrible, ethnicity of actors notwithstanding). There is also questioning the SJW's that would complain, if they are in anyway familiar with the themes, structure, and characters of Ghost in the Shell. If they are familiar with the ethnicity of any character despite the racial origin of said characters name (though I'm not familiar with the anime, are there any characters that are half-Japanese? Any with a foreign name that isn't native to Japan?)