> That translates to 14 relatives brought in by every skilled worker

That’s very easy within a few decades when you consider that the people who are sponsored will get citizenship and can then sponsor their own parents, siblings, etc. My dad sponsored six people, and he just has one brother. My mom has 12 siblings, but them and their families went to Australia following my uncle.

There are 300,000-600,000 Bangladeshis in the U.S., up from under 10,000 in 1990. Based on H1B petitions and natural growth, the population should be more like 15,000. People are bringing their entire extended families over.