The evil Trump, at it again. On the other hand, you need identification and a tax id to open a bank account. Why is wiring money different? I know why, but identification is a reasonable request, they’re taking dollars out of the country, not voting. What could be the objection? If they’re not breaking the law being here illegally, they’re all tourists not working here, they’ll comply with the law and take their money back with them when their vacation is over.
I think you’ve figgered out the work around. Their ill gotten gains will just take a little longer to reach the gringos in the old country.