Part of the complication is that it would be easy to argue that breaking up these companies built on large network effects will harm consumers (users mainly, bu

Part of the complication is that it would be easy to argue that breaking up these companies built on large network effects will harm consumers (users mainly, but a case can be made for advertisers) because the consumers benefits from the size and robustness of that network. Half the network is worth less than half of the original network.