Well, the sooner the backlog of illegal alien deportation cases is cleared, the sooner these children will be reunited with their parents back in their home country.
The holding facilities are probably way nicer than their living conditions back home. Maybe, having had a taste of such conditions, they will be inspired to try to recreate conditions as nice back home.
This problem is very easy to fix. If they don’t want the kids to be separated from mommy then STOP BREAKING THE LAW AND GO BACK HOME!!!!!!!!!!!!!!