Immigration, as an issue, reminds me a lot of capital punishment. There's aÂ number of poor, sentimental arguments on either side, and a few genuinely good arguments on both sides.
Oddly or not, the best immigration arguments seem to exist in the space where free market economics and Christian love intersect. In general, I think that increased immigration is a good thing, so long as (1) we control our borders, (2) we encourage a Melting Pot more than the Cultural Mosaic (includingÂ strict enforcement to addressÂ gang problems), and (3) we take a minimalist approach to entitlements. Of course, we quite unfortunately do none of those things today, except perhaps address the gang problems.
Anyhow, this NRO postÂ -- in which Richard Nadler takes on John Derbyshire (and his third degree blackbelt in TaeKwonEeyore) -- is one of the better commentaries I've read on the topic in a while.