Promising news of US Gov Antitrust action on digital monopolies such as Facebook, Google etc: https://www.nytimes.com/2019/06/03/technology/facebook-ftc-antitrust.html
But we need more than traditional antitrust (“closing door after horse has bolted). We need an the Open Revolution: https://openrevolution.net/
For specific analysis and remedies for these digital monopolies see: