I do have some understanding for people that were raised in a Nazi-like environment as the likely don’t know any better. But when you hit adulthood, you need to inform yourself. The problem with that is that there are countless Nazi channels you need to escape from. There needs to be some tiny spark from within. By immediately (though understandably) condemn such people, you don’t enlighten them. Try instead to have them explain their views as if you are five or completely ignorant. They will not feel threatened and gradually, they will get into trouble explaining themselves. It will not work with all.