> This is why it's so important, especially in the US, for government to begin aggressively enforcing antitrust law again

It already does and it didn’t particularly stop. The problem is that there is no obvious damage to consumers here (what US antitrust law is based on).

GCP and Azure are both significant players with similar offerings. The fact that people use proprietary Amazon APIs to manage stuff isn’t a high enough bar to show a monopoly.

“We are locked into their product because it’s a big engineering expense to move off” isn’t an argument for monopoly busting. It’s a reflection on poor business decisions by the complainer. It has never worked against Oracle/MS in the past, it won’t start now.

A whole generation of engineers is about to relearn the importance of open source that drove everyone to open source stacks 15 years ago.