This probably wasn't a serious proposal, but in general, I agree that we certainly shouldn't do this for illegal aliens.

I think illegal aliens should be found and as rapidly as possible helped to be returned to their country of origin (unless they can legitimately claim asylum). And, returning them shouldn't take weeks or months ... but days at most.

Again (I think I said it somewhere else), maybe the means for providing legal work visas should be improved so that the need to "sneak across" to earn a living isn't so necessary.