They can form a new company that handles all operations within the EU but nowhere else. This subsidiary company can license and segregate European data from the parent company,

This protects you from government overreach, and protects your privacy, and makes identity theft a lot harder.

For example, personal information. Each governmental ministry might have any amount of information on a given voter. Finance knows about your tax, health knows about your medicare claims, justice knows about your criminal record, the RTA the status of your drivers licence. But they don’t know what the OTHER ministries know about you. The data is segregated. Just because one group of people knows about a given part of your life or existence, doesn’t mean that they can get access to everything else. You, by design, do not have one single file that has everything on you. The data is segregated.