Further, every private entity, even "news media" has a right to be a "propaganda machine" if they so choose. Propaganda is merely information disseminated to promote a specific cause, often a legal one. It's often biased and/or misleading but the expression of a political opinion is propaganda.
And as has been made clear in SCOTUS precedent, including by Kagan last summer in Moody, every private entity has a right to express their opinion without interference from the gov't by being compelled by the gov't to carry other viewpoints. And that's not even getting to the larger intrusion ...
that would be regulations requiring them to publish accurate facts, which as shown, which would be against 1A principles except for those limited and long-standing 1A exceptions.
To be clear on this matter. Regulation of "broadcast stations" was not the rule. It was a narrow exception to a very long-standing rule that prohibits regulation of the media. That rule is 1A.