Federal Immigration laws must be adhered to and enforced, period, end of sentence. The current issue of undocumented illegal aliens residing in the US requires attention.
One rather simple solution would be to deport those entering the US illegally during the past three years when apprehended.
Those that are currently employed for the past 36 months, demonstrated proof of paying monthly rent, utilities, auto insurance bills, not violated civil or federal law, excluding federal immigration law, could be granted a one time opportunity to plead guilty in Federal Court, agree to pay a fine of between $5,000-$10,000 per family member, within a 60 month time period, inform and report employment status, current residence status, prof of filing federal and state taxes, to the court or immigration compliance authorities.
Congress could then grant the authority to issue a nonresident identification card. At the successful conclusion of paying the fine, satisfaction in compliance to the terms of the probation period, granted a permanent residency card with the stipulation that failure to pay taxes or violation of federal, state law, would trigger immediate deportation until such time they become naturalized American citizens.
Such a law would reduce the expense and burden of rounding up illegal's, at the same time fund the building and maintenance of a secure boarder fence.
Those violating visitor visa stays should be deported and given the opportunity to reapply for entry through normal immigration channels.
The expense and numerous issues resulting from rounding up, incarcerating, and deporting illegals is prohibitive and counter productive.
The issue of anchor babies is simple, a child born in the US to illegal undocumented aliens would follow the nationality of their parents. The Constitution requires Supreme Court interpretation and clarification as to intent regarding the status of children born in the US to illegal immigrants that have not denounced their citizenship to their former country. As for children born within the aforementioned " quasi amnesty program" they would be American Citizens, provided their parents upheld the terms of probation, and denounced their citizenship and allegiance to the country they originated from.