Sprin, I'm not sure you understood what we're saying.
Currently, it is considered acceptable to discriminate based political party, which is what Naziism is about. If you don't want to hire someone who's black because they're part of a black supremacist movement? Like, literally one which has goals similar to Naziism did? That I consider acceptable. If you don't want to hire someone who's black, because they're black, that's fucked up. If you don't want to hire someone who's gay because they happen to be really aggressive about it and call people 'breeders' or the like? That I consider acceptable. If you don't want to hire someone who's gay because they are an abomination unto the Lord (and particularly if you say that while wearing a cotton/polyester blend; I have some respect for people who are at least consistent in their beliefs, which is why most Christians saying things like that is fucking ridiculous), that's fucked up. If you're hiring them for a clergy position, I can see why it could be relevant, but if it's to be a fry cook? No, it does not have bearing on their ability, and it should not be a factor.
And no, currently, no one can discriminate on the basis of race in service or hiring, legally speaking. That's why affirmative action is so controversial despite being otherwise minor.
Furthermore, the most likely people to have experience with cooking asian food are asians. And most of the time, restaurants like that have servers of the ethnicity the restaurant is supposed to have food from, and the rest of their staff is rather varied. But it's still a preference due to ability, not 'because I don't like them'.