As a former broadcaster, this is easy to address. The mainstream media are revenue driven, and, except in the case of public broadcasters like PBS, that revenue comes from advertising. If you address the advertisers directly about your concern in a civil way, and tell them you will no longer patronize them, they will pull their ads. In the case of publicly owned broadcasters, simply do not donate to them, and lobby your elected officials to pull public money support from those who would undermine our country. It makes a whole lot more sense to me than an armed revolt of any type. What I propose will be neither quick nor easy, but I bet it will work.