Jed: We have met the enemy and it is us — or at least those of us who are liberal and insist on telling newcomers they should never assimilate into White Anglo Male Americanness and by the way if you want to be on welfare and register as card-carrying-Democrats that can be arranged too. Closing borders won’t open closed liberal minds. The problem is much more internal than external, in other words. It requires nonlibs to challenge the fundamental premises of contemporary multicultists. Building a Great Wall of China along our southern and northern borders won’t do a lick of good on that front. (Incidentally, the Great Wall didn’t do China much good either — at least not until Western tourists turned it into a favored destination.)