But there are issues:
+ Amazon uses profits from AWS to dump in other sectors, selling goods and services below market value. The weird situation could mean Amazon pumps many billion dollars a year into pushing major grocers (who operate on thin margins) out of business. This is not good for anyone - but it's not a case of 'monopoly' so much.
+ Google is dumping in adjacent areas of tech - giving away Android for free, for example.
There should be some regulatory tweaks here, but it's going to be tricky.
As you point out - a much easier win would be to break up value chain consolidation over all.
Carriers, tech providers, content creators, content distributors - might benefit from being separate entities.
I don't think there are any net benefits to society from these entities being consolidated. There are no economies of scale, no proper synergies. There are however, huge incentives for investors to have AT&T own content creation and distribution obviously, so they can subsidize their own assets and not others. There's no long win for consumers so it makes sense to keep them separate.
Finally - there might be an opportunity on platforms. I think that the Apple store may be an anti-competitive issue - the notion that you don't control/own the $1K device you just bought is getting ridiculous. I would require platform makers to at allow open access to the platform. Same would apply to mobile phones being 'locked' onto a network - that should just not happen.
