An article in The Economist points out that children are still migrating to the USA from Central America, and doing so without adult family members to help. The numbers are down from 2014, but are still quite high.
The article goes on to state that the migration is not primarily to reunite the kids with family members in the USA but for them to escape the violence and poverty of their native lands.
The governments of Mexico, Guatemala, Honduras and El Salvador are working to improve conditions, but appear to need a lot of help to achieve their objectives. That is where Joe Biden's plan to provide $1 billion in aid next year comes in. Lets hope that Congress appropriates the money. It would be an important step in improving U.S. immigration policy.
Indeed, there used to be a Good Neighbor Policy and an Alliance for Progress. It is time for the United States government to return to a policy of offering a friendly hand to our neighbors to the south. If your neighbors house is on fire, and he asks for the use of your hose, you don't rent to him!