A bank manager, lawyer, and teacher can’t find equivalent work in the US? What aren’t you telling us?
Lack of English proficiency. In time, they will do better but they aren't afraid to work manual jobs in the meantime...
I have had friends who came from other war torn countries or emigrated from other countries, who have been professionals.
They all had difficulty finding professional positions. The Drs had to go back to school. The lawyers, well they had to start at the bottom, find a job and go to law school or find another endeavor, and teachers, well teaching is pretty country specific.