Supremacist ideologies—Communism, fascism, Nazism, radical Islam—succeed when they are appeased. Did you notice how, the more the Obama administration apologized for a YouTube video, the more rioting occurred in front of U.S. embassies across the world?
On the other hand, the policies and pronouncements of President Reagan led to the crumbling of the Iron Curtain. Calling the Soviet Union an "evil empire" brought rebukes from many government, media and academic elites—but history proved Reagan right.
Confronting evil, confronting the supremacist ideology, was the only way to defeat it.