Every one of them had the opportunity to go through the process of naturalization, but chose not to.
There is also a work visa. As long as the don’t break the law they should be good.
Every one of them had the opportunity to go through the process of naturalization, but chose not to.
Some time ago, I looked up what it takes to go through naturalization. The first rule is that has to be legally a resident in the country before going on with the next steps. That usually means a visa (like H1B) or green card.
One reason I think that Dreamers get the short end of the stick is that they are brought into the country, go through the US school system, and still face deportation because they are not a legal resident even though they have an American education. But, Congress doesn't think so. Sigh.