There is no good way to prevent a proposed "G Infra" and other broken up entities such as "G Ads", "G Search", etc etc to make a preferential deal to share the

There is no good way to prevent a proposed "G Infra" and other broken up entities such as "G Ads", "G Search", etc etc to make a preferential deal to share the infrastructure since "G Infra" has never been a monopoly in the market. If you want to do that, you gotta go through another multi-year legal fights which is destined to fail. You might be able to prevent "G Search" from doing some anti-competitive stuff, but at the point it's not that different from just forcing corrective measures except breaking up is a much harder, risky and time consuming goal. Breaking up based on geographic location worked well for conventional monopoly because those companies were usually organized in a geographically cohesive way and they don't have good incentives to form another cartel across the continent. For Google, it's already structured in a way to reinforce network effects in every way, so this is a completely different story. The right approach to tackle this problem is a more pin-pointed regulation, such as DMA. EU is doing the right thing for those big techs while the US is wasting its precious time and energy.