My mum is being really racist towards my boyfriend - is there anything I can do?

So I just overheard my parents having an argument because my dad is disgusted with the way she's treating my boyfriend. To be fair she's being pleasant to his face, but behind his back it's all snide comments. The first time I brought him home, she told me after that she was shocked, and I asked why? and she said: 'you can't see why I'm shocked?' I said 'no...' she said 'he's chinese!!!!'

I just don't understand he's a really good person, he can't help that he's chinese and even if he could help it, why not to choose to be chinese? When I tried asking she said it's because he's not jewish... but she's never behaved like this towards my white, christian/ atheist exes.

Is there anything I can do? Or is she a lost cause being racist her whole life. I hate how it's making my parents argue now too.

Maybe it is an 'honour' thing among her Jewish peers? Unless you are Orthodox Jews she could have bluffed a normal looking* IC1 to her friends but harder if he's different looking. Assuming their aren't many Chinese Jews*

* Wording chosen to illustrate the point before any SJWs jump on it from a great height

tell her we are all humans and we all bleed the same. Different ethnicities don't mean that people can't be together.

As much as I dislike racism, I don't see how this works. I'm sure my dog has the same colour blood as I do, it doesn't mean I'm planning on marrying her.