The EU authorities themselves are not banning Facebook, per se, despite the headlines - the threat to remove Facebook from the European market comes from Facebo

The EU authorities themselves are not banning Facebook, per se, despite the headlines - the threat to remove Facebook from the European market comes from Facebook/Meta, because they don't want to comply with the expected upcoming order preventing them from transferring EU data subject data to the US. The thing that the EU officials are preparing could be described as a ban on data transfer, although it's really an order to comply more correctly with an existing law (the GDPR) rather than a new obligation. But it's not a ban on operating in the EU. If Facebook kept EU data subject data in the EU, or even if they use Standard Contractual Clauses to transfer it to different third countries without the same kind of problematic surveillance laws that the US has, there would be no issue.