You have been incredibly clear, and so has he. He is clear on his disgust and why he chose to help him rather the cut off all ties and whilst I would not do the same myself I do not condemn others who try to.
But so far there has been no evidence that he supports or sympathises with any Nazism ideals or ideas which to me is the breaking point.
If there is something I have missed then please show me but I have not seen anything to the contrary.