This is quite interesting.
The US has always felt it was leading the way in promoting (and through the internet, imposing) a model with the fewest possible rules, which it calls freedom.
Facebook was built on that premise and the costs of the approach were recently made clear. It sells people's data, data Facebook perceive as its own, to make their profits.
Now the EU is saying there are other important principles in play which need to be designed into a social model. These include protections of private data. The EU says private information doesn't belong to Facebook after all.
US Facebook users will now get the protections provided to EU citizens, where the abuse of information is recognised for what it is.
This is a neat example of where the US constitution fails to provide useful guidance, and US political institutions seem to be willing to ignore harms done to individuals in order to generate wealth.
Negative digital externalities are a thing.