Just think of all the new startups and money to be made by breaking up big tech.
I think the valuation of a broken-up Google and Apple would exceed the monolithic conglomerates that they have become. So many of their business units and products don't even monetize because they're going for an intangible "platform value" that is only achievable at obscene scale. In this hulking form, they can reach into new markets and charge nothing, killing off all the incumbents, just so that they can grow their empires larger and tighten their grips on your attentions and wallets.
Amazon gives away Hollywood movies for free because it keeps your eyeballs glued to them. And they're also a grocery store, for god's sake.
A big tech breakup would provide much needed oxygen to the ecosystem, lift a bunch of impossible to beat barriers, and result in far more competition and money making.
Imagine a web that isn't dominated by Google or a phone market that isn't controlled by a duopoly. Imagine if we could suddenly launch iPhone and Gmail and YouTube competitors. The energy barriers are too high today because the big players have consolidated every angle of attack.
No wonder Peter Thiel and Vance want it. This would turn the big tech money siphons over to venture capital, entrepreneurs, and engineering ICs again.
We should all be 100% for this.