I find it interesting how many seem so content with that constitutionally guaranteed freedom of speech means freedom from the government restricting you.

At what point does that stop being useful, as corporations gain power over the government?

Some used to worry that private malls replacing public venues for people congregating caused an erosion of rights. Now the Internet is mostly private malls. Anyone can self host a blog, still, but most spend their virtual lives in the "online private malls".