I knew that his grandfather was a Nazi and expelled from Canada, but I also mean Afrikaner, in that he believed in and supported apartheid, not that he was of Boer Dutch descent. While Musk doesn't speak Afrikans, his mother does. So, that makes him a son of an Afrikaner.
I am glad you find it useful.
A book I recommend to think about the times is called When Hitler Stole Pink Rabbit by Judith Kerr. It is actually the first book of a trilogy.
They also made a movie out of the first book, which is a fictionalized version of Kerr's life.
Here is the movie version free on Tubi. You can turn on the English subtitles.