We can ascertain nothing of the sort, unless you're in the 'conclusion jumping finals'.

And it would be helpful if you read the First Amendment which clearly states that "Congress shall make no law...."

Congress, and not corporations, is 'prohibited'.

You can't say whatever you like as an employee in any corporation without running into some constraints up to and including firing.

Thank you for dropping by and for your continued enrollment in my Constitutional Law Seminar.