Like they do with dogs today.
There would be social pressure in China to stop eating pork so as to do civilisation better.
And nobody would ask why the Bible forbids eating pig meat; since pigs wouldn’t be food animals, asking why it’s wrong to eat them would be like asking why theft is wrong.
I live in muslim majority country as a non-muslim, and the racist one sure do, some to the point of having superiority complex simply because of their religion. Racist will be racist no matter what condition you give them.