Who should be allowed to move to America?

In my the people that move to America should be the type of people
that really need to live here. This is because if your life is really messed up
and you need some money to support your family then you deserve to live
in America. Even if the country you live at is treating you like trash then
you should move here. If your going to move here then you have to work
hard at your job if you have one. Here in America we want good citizens
not people that don't make an effort. Also we don't want people that come
to be criminals. The type of that we should let come should be good. This
is my opinion of that should be allowed in America.