Illegal immigrants should be first informed, second prevented from entering and third detained if they still decide to enter. They are law breakers by merely being in the United States without entering via port-of-entry or overstaying a visa. It shouldnt be dehumanizing but it must be manned and they shouldnt be allowed to leave. We have 23 million complete randos in this country. It’s neither okay nor sustainable and they should be sent back. Frankly if it is not profitable to be an illegal immigrant then they will stop coming (at least in such numbers). Ultimately the solution is prevention but no one wants to do anything about that be it physical barrier, more border guards or prosecution of American businesses. There is no kumbaya solution to this problem.