How is enforcing a standard protocol for communication sacrificing the ability of startups to compete with large corporations? I believe it's the contrary - a standard protocol would mean that any new app (made by a startup for example) can enter the big sandbox with all other users and they all can communicate freely. E-mail is a good example for that. If you want you can build an e-mail client and sell it or distribute it to the people and if it's better than the alternatives - great! Imagine a world where the e-mail protocol was proprietary and locked down and Gmail has become the dominant player. How would we then have alternatives? How would an e-mail startup enter the market?

Your argument further supports regulation and an unified standard than it disproves it.