I am not sure how realistic this is, but couldn't they move relevant parts of their business overseas? E.g., hardware and software development still happens in

I am not sure how realistic this is, but couldn't they move relevant parts of their business overseas? E.g., hardware and software development still happens in the US, but updates are vetted and signed by a separate entity in a privacy-friendly country? The US could block iPhone sales, though I think the probability of that happening is extremely low, since it would have a major economic impact.