Can we stop fucking up terminology please? Asperger was not a Nazi. A nazi is a member of the NSDAP and Asperger never was a member. He was, however, absolutely an opportunist.
We have to finally stop to view people's doings in other times from our point of view. Asperger was most certainly not a hero but he did save a bunch of children who were deemed socially unacceptable by giving them a diagnosis and humane treatment. What do you think would have been their future without him?
He absolutely was a nationalist and he was a proponent of eugenics which, at the time, was quite common. In that regard you might want to look up Alexander Bell for example.
Even Herwig Czech says in his paper (that has been linked in this thread) that he was not a member of the Nazi party but an opportunist. There is a difference and it is an important one.