Good points. Still, anytime enacted laws are not enforce it’s a huge problem.
1. No criminal charges involving an illegal immigrant can be adjudicated in the U.S. criminal court system. An illegal alien who commits a crime is not just a "criminal" from a legal perspective, but a foreign invader. As such, these individuals should be treated as "non-uniformed combatants," and these criminal cases should come under the authority of the U.S. military.
2. No illegal immigrant has any standing in a civil court in the U.S. If legal action is brought against such a person in a civil proceeding, the illegal alien is automatically subject to a default judgement along with whatever penalties that might entail. More importantly, this would mean that no illegal alien has standing to file a civil lawsuit as a plaintiff, and therefore basically resides in this country at his or her own risk.