The issue is joined, the battle lines are drawn, and the GOP will debate and may decide which way America shall go. And the basic issues – how to secure our borders, whether to repatriate the millions here illegally, whether to declare a moratorium on immigration into the USA – are part of a greater question. Will the West endure or disappear by the century’s end as another lost civilization? Mass immigration, if it continues, will be more decisive in deciding the fate of the West than Islamist terrorism. For the world is invading the West.