The CO2 per capita produced in China is significantly less than the CO2 per capita produced in most first world countries.
Even if an average first world person decides to eat no meat at all, they're still gonna cause more CO2 emission than an average chinese person.
This isn't to be blamed on China.
You do realize products somewhere else aren't magically cheaper? That the transport actually adds to the cost?
The reason these products are cheaper is because you rely to abusing others.
And no, abuse of others is not necessary. But yes, you would not be able to live as decadent of a lifestyle if you had to have even close to as little wealth as the people whose poverty you abuse.