As recent books by Douglas Murray and Ivan Krastev attest, serious discussion of immigration policy in Europe has been precluded in recent years by the idea that the topic is itself toxic. As the European migration crisis mounted after 2015, the gap between the views of citizens and their political elites widened—allowing populist politicians to take full advantage and even threatening the E.U. In the U.S., Donald Trump's draconian immigration policies have had the same chilling effect. Yet it is not too late for Canada. With tent cities and "anti-immigration" protests springing up, Canadians must seize the moment. It is not illiberal or xenophobic to debate immigration policy. It is essential.