Apple’s bank account is already going to be hit when the region with the current lowest margin of profitability makes itself LESS profitable. It could become a situation where they cut their losses and focus on those areas with higher margins.If Apple were to do that, they would have to shut down all services too on existing phones. Apple likely will not do that to their brand or bank account.
The services can still be available to the minority in the EU that have iPhones, they’d just have to set up accounts with addresses in other countries.