How old is your nan, Martinus?
Neither me, nor my parents(my father is dutch, born in 1945, just after the war) have a problem talking about the war. I don´t know about my grandma, never talked to her about it, but my mum knew some stories from her. In school we talked about WW2 a lot, they really want to make sure it won´t happen again.
If I for one, watch a film about WW2, I have no problem seeing the Nazis lose, i just can´t identify myself with them.
The BPjM, the guys who made this song illegal, are usually in the news for censoring brutal games so they can´t be displayed and sold publicly(you need to show your ID-card).
From reading their reasons, I´d say this guy is simply a Nazi, the extracts they show are glorifying Hitler, so 'I don´t really see a problem.

BTW: If you like swastikas, go to India, preferably visit something religious, from what I know, they represent the wheel of life there and are a common religious symbol, Hitler just copied them(seen a lot of them in a documentary lately).