You act like the US Government hasn't already banned Chinese companies from buying or doing business in the US. That would be incorrect.
The U.S didn't ban ALL Chinese companies operating in the U.S. Try setting up a coffee shop or computer repair shop in China as a non-citizen and see how long you last. That's extremely illegal in China. Their government has to approve every foreign business and they rarely do (unless you're some multinational corporation who have made a whole host of concessions.
It seem to be a well organized negative PR campaign against the company (completed by name calling and downvotes on social media)