What do they say when you tell them that thousands of Muslims fought in Britain's Indian Army, in the Free French Forces, in the (this one's a little tricky) Soviet Red Army against Hitler and his allies? You do tell them that, don't you?
None of which were recruited by the mufti and motivated by their hatred of Judaeism, as were the muslim troops that fought for Hitler.
Muslims fought for the Allies and Muslims fought for the Axis. In a war as huge as WW2 there were many peoples that allied both with the Axis and the Allies.
However, the Pan Arabist movement was a nationalist movement that was blooming in the Middle East in the 1920s and onward. This Pan Arabist nationalism became mixed in with Nazism and radical Islam. The Pan Arabist/Nazi/radical Muslim bond remains a very toxic brew in the Middle East to this very day.