Once they reach the age of majority (18 in the US) they cease to be able to hide behind the fact that their parents brought them here and they themselves become criminals. They are here illegally and should be deported as soon as they identify themselves as such.
I don't believe that ANYONE should be allowed to attend a institution of higher learning whether it be ECPI, CPCC, UNC, or Harvard if they are not residents of this country or have the appropriate immigration documents. What they pay is irrelevant.
Some of them have spent the majority of their life here. Trying being told to 'go back where you came from' when you have no real memory of where that is.