This is true. If I went to say Russia and demanded that my kids be taught free in school, in english, free medical care, began protesting on the street and demanded that I should receive 'preferential treatment' of any kind they would give just that to me...I would be preferentialy dropped into the nearest gulag or kicked the hell out.
so the mexicans demand school, demand health care, and demand "preferential treatment" ? actually its just the government being generous, they dont demand anything because they cant. the U.S. government is human, so they help the illegal out. thank god people like you are not in power.