Supply and demand
If there were no demand for produce in Israel, there would be no market and there would not be an issue over "importing".
It's the same here with illegal foreign workers: it wouldn't be a problem if there weren't a demand.
Far from saying "See ya!", I suggest the Israelis would have already cut off the commerce since they are afraid enough to build a wall, unless they needed the product. Who would they buy their oranges from? Syria?
Regards--
Mary Anne