After having read most of the comments here, most of the discussion is turning on the point of what the first amendment does or does not require. That's great - the law should be the low bar for behaviour of the government, corporations and populance.
The first amendment is an excellent part of the constitution, putting the U.S. far ahead of many other regimes when it comes to free speech. However, it's not the be-all end-all. The corporate and political landscape, the balance of power between the people and government, and the U.S.'s geopolitical situation have changed since 1791.
Too many people treat the American constitution like the U.S.A. Law-Bible - ever correct, never flawed, never to be updated. That is absurd. The last amendment was ratified in 1992, and I'd say we are overdue for a few more.
In your arguments, please distinguish what is legal from what you think is the right thing to do.