What are the aspects of Nazi Germany that you think have merit and we should try again? You can't just pick and choose when the aspects are intrinsically linked though.
Will you now argue that those things are intrinsically linked to starting wars and conducting genocides? If so, you are going to need MUCH more than just "the nazis did that, therefore everyone who holds even one of those views must hold all of them". And just to make sure: my description of good points applies to the Amish as well, but I don't think anyone would accuse them of wars and genocides.