Islam has adopted Nazism to further its ends. It will use any method to further its ends. Nazism seems to have all the ingrediants, including a strong dose of fascism, to further the cause of the Islamo Master Race.
These ism's are similar in that they are/were evil and expansionist but that's about it. Naziism is secular and atheistic, Islam radically religionist.
Sadly, for almost the last hundred years every time evil rears its ugly head the words Nazi and Hitler emerge. This lends nothing to an intelligent analysis of the challenge and is intellectually equivalent to shouting "poopy-heads" at the offenders.