We've done this in the past. AT&T was broken up into the regional baby bells. Eventually, the baby bells started to get absorbed back into the monolith AT&T again. Nobody stopped it. I assume that the fact that few people use landlines and there are more than one provider of communication services where the AT&T voltron is no longer a monopoly.

The point? Not really sure, but as much as I'm all for breaking up Alphabet, I'm not convinced it will work. I'm willing to give it a go though