That those movements exist all over Europe and further, all united by the same symbols and a corresponding belief, probably it can be seen as a following that the Third Reich once reached the extent of its sphere of influence that it developed.
Local prejudices it won't have changed, but it will have added power to it. If someone came upon the idea to erase a certain group of humans, majority of society would tell him he's nuts - but as it became culture for a certain amount of time in a wide range of areas, it became common thouhght. It stripped the idea off its illogicality.