The real answer is that no corporations should have free speech rights in and of themselves - by obtaining a government granted liability shield a corporation (/LLC) is not merely a group of individuals, but rather a highly scaled governmentesque entity running on its own subbureaucracy. That liability shield is an explicit government creation for specific public policy goals, and when the outcome is at odds with the individual freedom the arrangement can and should be modified.
I actually think that they do — tourists to the US have free speech protections. There are many foreign-owned press outlets operating in the US (Forbes, Al Jazeera, RT, CGTN etc.) that are also protected by the first amendment.
The real answer is that no corporations should have free speech rights in and of themselves - by obtaining a government granted liability shield a corporation (/LLC) is not merely a group of individuals, but rather a highly scaled governmentesque entity running on its own subbureaucracy. That liability shield is an explicit government creation for specific public policy goals, and when the outcome is at odds with the individual freedom the arrangement can and should be modified.