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 mean, they were still actively eating dogs when i was in south korea in the early 2000s so you can’t really blame it on wartime famine. It’s just a cultural thing.