2+2 =4 may be old, but it is still true. And racism flows quite naturally out of Darwinism. It simply takes Darwinism to its logical conclusion. Hitler did use Darwinsim, in context, to promote his theories. Any use he made of Christianity was OUT of context, a complete distortion of Christ's teachings and what the scripture actually says.
Localism is for people who can still sleep at night even though somebody they don't know in a city they have never been is doing things differently. ("Localism, A Philosophy of Government" on Amazon for Kindle or Barnes and Noble ebook websites)