Where are the minor's parents? If they are outside the country, that's where he goes. If they are inside the country illegally, they all go. If the parents are here legally but brought him here illegally then their visa status may be at risk and they may end up going ( I am not familiar enough with the rules, but I am guessing their status could be revoked).

Bottom line, there are legal processes to go through for proper entry into the US and to remain here. Difficult? Yes. Nearly impossible for some? Yes. But my expectation is that just as I should follow the laws of another country to gain entry, so should people entering the US follow our laws. Break the law, face the consequences.