Do you have any reputable, credible sources for this information. Yes, a Chinese company purchased Smithfield, but at the time of the purchase, Smithfield assured that the food sold here would continue to be raised and processed in the U.S. In fact, Smithfield's CEO testified before Congress that it would increase U.S. jobs because it would increase the demand for U.S. pork (which the Chinese market loves).
I am unable to find any sources indicating that Smithfield foods being sold here are not processed here. Smithfield has a horrible record, and there are many reasons not to buy their products -- horrific animal rights abuses, unfair treatment of labor, and the fact that their products are just not very good -- but at least be honest and know why you are avoiding them rather than basing your decisions upon hysteria and misinformation.