This is from the DREAM Act proposed legislations described in wikipedia....arguments for and against are there.

These are valid points in opposition to the concept, whether or not you like government by fiat.

"Opponents of the DREAM Act argue that it encourages and rewards illegal immigration. Other stands include viewing it as importing poverty and cheap labor, being a military recruitment tool, having economic and social burdens (subsidies from state and federal taxes, degradation of the public school system and neighborhoods), and as being unfair to American-born and legal immigrant parents and children who must pay full tuition at state universities and colleges.

Some concerns center on the parameters of the proposal, specifically that it would admit individuals who have already formed their identities overseas (i.e. people who arrived up to age 16), that illegal immigrants up to age 35 are allowed to legalize through it, that it would result in massive fraud similar to the 1986 amnesty, and that it will encourage additional illegal immigration. There are additional concerns that the DREAM Act will shield gang members from deportation."