How do you propose they leave?
Why is the responsibility on Meta to make sure users in a jurisdiction don’t sign up for their service? Surely some of this responsibility could fall on the user.
That's not what's happening here. Facebook has a Dutch subdivision (Facebook Netherlands B.v.) and an office in Amsterdam. They're absolutely subject to Dutch law. They could leave, but the EU means that they'd be subject to this kind of order from a Dutch court unless they left the EU entirely, which would make it harder for EU companies to pay them for advertising, hurting their profits.
I agree that they are subject to the laws of the countries they operate in. I do not agree that a company should own all of the responsibility in making sure no Dutch citizens access their services. The idea that the internet would be different depending on where I access seems anti-internet.
When your business model relies on user data to generate profits, you have to collect it and that makes it discoverable.
That's GDPR for you, though.
I know the UK and USA definitely do these prosecutions regularly, even though both countries would throw a hissy fit if Iran started prosecuting every tourist who visits and was known to not wear a headcovering outside Iran.
I'm pretty sure the Dutch subsidiary exists just to avoid taxes, the Irish branch is the main company most EU citizens interact with.
But they can't play it both ways.
They have an office in Amsterdamm, they control a large part of the ad market in the Netherlands, and probably host there or nearby on EU soil.
They can't seriously expect to not be subject to dutch law.