Excuse me as I control my laughter.
Buchanan has been absolutely prophetic regarding terrorism, illegal aliens and the insane influx of immigrants. People laughed, (like you), when he said in 1996 he'd build a fence with border patrol guards all along the Mexican border, and would put major restrictions on immigration. Well, guess what? Now they are erecting all sorts of fences on the Mexican border and increasing border partol, and putting far more checks on immigration.
He also saw NAFTA and GATT as bad for American business, and guess what? Today, many former proponents of these self-defeating trade rules are now agreeing with Buchanan.
Another of Buchanan's prophetic statements, (in his book "Death of The West"), is that Third World Muslims are multiplying like rabbits and Islam is spreading in leaps and bounds, while First World Christianity is dwindling and Western man is engaging in self inflicted genocide through abortion and birth control. At the current growth rate, within 20 years Christians will be outnumbered by "the religion of peace" by 2 - 1. Here is quote from Buchanan: ""Western Man, relieved of his duty to civilize and Christianize mankind, seems to have lost his will to live and reconciled himself to his impending death,". Again, Buchanan is right here. We see this in today's America where homosexual perverts may soon have the "right" to marry, and the expression of religion on any public property has been effectively abolished. Buchanan, like anyone else, makes mistakes; but overall he's been right on the money. Mankind has always killed the prophets and laughed at those brave enough to speak the truth, this is nothing new.