Answer:
it depends on where they were coming from....if they were coming from a better country than america then life might not be greener for them.
Step-by-step explanation:
the general benefit I think they might gain is:
1) constant electricity
2) civilization
3) job opportunities ( other countries have it too)
4) developed economy
4) better standard of living ( not to forget some people who live in America still suffer today).
Hope this helps