The US is too invested (literally) in Big Tech right now, as it gives them a geopolitical advantage. That's why they have not broken up anything for real lately. But this feed-the-giant policy is already, though slowly, starting to crack. Look at how Congress is caught by the balls by Microsoft (“The US government’s dependence on Microsoft poses a serious threat to US national security,” says US senator Ron Wyden. [1]), and yet they cannot do anything about it because they have no alternative; a self-inflicted wound from decades of inaction.

Like the other comment here, it's ironic that it is the EU pulling from the market/capitalism playbook now.

[1] https://www.wired.com/story/the-us-government-has-a-microsof...