Do you think that a lot of people from Africa and Asia?

While I can understand why you say this. I have worked in health care for 20 years and have worked with people from all over the world. I have a tendency to look at other cultures in their totality. And I can say with certainty that life is cheap in Africa and Asia. What do I mean. Abortions are the norm, birth is the exception. Prostitution is as common as sunlight. And their constitutions are written in pencil. Arranged marriages are common and forms of slavery still exist. I just happen to think that people who immigrate to the west are the cream of the crop. It's not like people are immigrating from North America to Asia or Africa. I know this answer went a bit beyond your question. But I can't just focus on one good part of a culture and ignore the rest.