Please answer the question posed to you in reply #187. Should all buildings and/or houses built by "illegal" labor be bulldozed.
Afterall according to your overall rhetoric on FR those buildings are illegal/impure.
The reason that there is little national consensus on eliminating the labor pool that these guys provide is, I suspect, that your premise is wrong, that their labor comes at the expense of someone else.
Furthermore, the issue about mandatory provision of social services to illegal immigrants is a separate issue from that regarding the effects on labor markets.