From the American Immigration Council, and common sense: malicious immigration enforcement has serious negative consequences that affect children and extend to communities and the country as a whole.
“While both the immigration and child welfare systems generally recognize that it is in a child’s best interest to remain with a parent or family member, the complexity and lack of coordination between agencies can lead to prolonged family separation and even termination of parental rights.”
Furthermore, from the Applied Research Center and Colorlines.com:
“the Applied Research Center has also found a disturbing number of children languishing in foster care and separated from their parents for long periods. After a year-long national investigation, we estimate there are at least 5,100 children in foster care who face barriers to family reunification because their mother or father is detained or deported. That number could reach as high as 15,000 in the next five years, at the current rate of growth.”