There's no reason people immigrating into this country should face so many difficulties to come here legally, and there's no damn good reason for people to deport other people back into a place with crippling poverty and high crime rates.
If we can't provide for someone, deportation is the only option. If you search for the reasons we can't provide for immigrants in the US, it will teach you a great deal about the real failings of the United States, not the imaginary crises we conjure up every election cycle.