Suppose we modeled this as two separate countries:

* AI Island: just runs AI in data centers.

* Elsewhere: same as now.

Wouldn't there be gains from trade?

Sure, AI Island might be able to provide lots of cheap Internet services, but you can't eat Internet. Wouldn't they want something in exchange?

And wouldn't there still be lots of jobs in Elsewhere that can't be done over the Internet and have nothing to do with AI Island? If AI Island charges too much, they can always trade among themselves.