jerry is right. They really should be identified for what they are, INVADERS.
Criminal invaders. They should have been turned back at the border or sent back when they are caught. There is a legal means to get into the country and they should be made to use it. If the system is broken, it should be fixed, not just ignored. There are many people here who immigrated using the system; just giving amnesty or free entry dimishes the rights of those that went through proper channels.