Because the good SS Captain and his buddies haven't gotten a chance to exterminate them all yet. But give them a little time. They're having trouble getting their jackboots on.
Since it is the Muslims burning the flag and the person making the above statement is an outspoken supporter of the Balkan Muslims, this appears to me to be a statement in support of the Muslims anti-Jewish sentiments. After all, the Muslim SS units were very good at murdering Jews as well as Serbs.