You've got press blackouts in the 1940s, you have the PMRC triggering congressional hearings about musical content in the 80s, you've got crypto laws in the 90s, you've got the DMCA, you've got the DHS seizing domains, you've got calls to have Wikileaks banned. Your all-caps "the government" did these, and keeps doing them, and I don't know which government you're watching if you think that these elected officials and unelected bureaucrats shouldn't be kept on the shortest leash possible.
The Bill of Rights regulates no one but the government itself. The government has two roles: to keep others from infringing on my rights, and to keep its nose out of my damned business unles I infringe on others'. It's doing a lousy job, but that's a different issue.
There exists no private entity that can legally stop me from saying what I want. They can keep me from doing it on land they own or with resources they own, but that's fine. I don't want them to be able to freely use my resources without my consent, either. That's the concept of private property. But I can get a bullhorn and run down to city hall and yell, I can publish a newspaper, I can create a blog. If $company_x doesn't want to host my blog, I can get $company_y to do it. If my government can stop me on a whim, though, then I'm screwed.
(Edit: typos, damnable phone, it's trying to censor me.)