THankfully last year America had more legal immigrants than the years prior. Believe me I understand poor. My friend lives over in Nigeria and has tried for over 11 years for her husband (who has never had a conviction or problem) to come to America. They have been married for over 11 yrs. They must wait the legal way. My grandparents waited. God blesses those who do not take matters into their own hands to break the law. Time and time again in the bible, whenever man decides that he "cannot wait for God", man brings destruction onto him or herself and their family.
Sadly most of the American kids in foster care are there because their parent is in American prison. Kids suffer for the sin of the parent. Maybe God is tugging at your heart to make a difference. Many Christian organizations are currently helping refugees find families to take them in, teach them skills (such as English, but also financial etc) and just get them integrated into systems of help (like church families). Contact Salvation army or Bethany Christian services to start. There may be others, but those are the ones in my area that do great things to help. There is another organization to help the children of those incarcerated. I think it has angel in the name. I have a 2 kids that I help so I never had to go through the organization. Take care!