[shadowgovt]

I have no particular expectation that if we were to break up Google, some kind of grand federated system would take its place.

Competitors had decades to get a federated solution together and simply didn't. Attempts got mired in squabbling over data ownership, bickering about costs and fees, failure to agree upon an open protocol, and all manner of other nonsense that Google was able to solve by being a single player and coordinating all the moving parts internally.