It's the second largest economy. And I agree that it's practically impossible to avoid it completely, I only suggest avoiding it where possible.
My personal rule is to not buy anything made in China for more than $100. I can't avoid buying Chinese for cheap plastic crap, but for significant purchases it's worth the time to be ethical in your purchasing decisions.
So you haven't bought a smartphone, computer, camera, etc? Give me a break. You should boycott australian goods too. It's committed genocide and stole land/resources from the aborigines and got rich selling resources to china.