It's all connected
Even though the bill does not have to do with foreign countries, it does have to do with protecting pirated content, which is mostly pirated by foreign countries such as China and Russia and available in the US. These days we live in a global economy and not individual countries, its all connected. With information being accessible so easily, it makes it easy for foreign countries to penetrate the US and make fakes and pirated content easily available. Putting restrictions on US companies/sites will just add fear and will limit peoples freedom for content sharing, however I dont expect it to slow down pirated content or China fakes. People who want things for free or cheap, will figure out how to get it.