The biggest problem with there being such a stigma against the Nazis and National Socialism is that there is no boundary or goalpost on the right for arch-conservatives. The boundary of the far left in the West moves steadily toward their ideal, Marxism and Communism; their end zone. The movement is seamless, almost undetectable. Actually, ALL of politics is moving in that direction, with no definite right boundary defined.
With no right boundary, there is a steady drift of traditional conservative values to the left. Most major churches now recognize gays, for example. That one-time bastion of spirituality, the Catholic Church, is so full of Hispanics that many believe the next Pope will be a Latino. Here in America, a
strongly Hispanic Church means the Holy See is a formal supporter of amnesty for all illegal immigrants. So much for separation of Church and state.