I believe in the principles of free speech not because a lawyer encoded some specific version of them somewhere, but because I believe access to information, public debate, and the right to dissent are necessary for a successful Democracy.
Me too. I just acknowledge we still have that. Short of a threat, conspiring, or incitement, you can say whatever you want to whomever you want about whatever you want.
I'd also argue that general rejection of one's ideas are a part of that public debate.
If you believe a corporations right to at-will employment is more fundamental, I think you will realize one day how mistaken you are.
Free speech is the the first and foremost of our rights. The freedom of association is of nearly equal importance. Someone not wanting to associate with you does not take away your freedom of speech. I know you want that to be the case, but it's not.
The basic agreement of a free society is that you can choose to be as confrontational, rude, justified, proud, passoinate, loud, vulgar, boorish, wrong, right, etc... as you want and the state can't arrest you, fine you, or curtail your freedoms. Other free people (and "corporate persons") can choose to not date, marry, buy from, employ, work with, sell to, join a club with you. That's not oppression. That's not corpofascism. Any libertarian would agree with that.
The possible exception being in some instances that interfere with interstate commerce under the commerce clause (e.g. Katzenback vs. McClung).