Well, technically Judaism is a religion, as is Islam. So what I don't get is why we just don't say religionism.
But what I really don't get is the difference between Jews and Muslims. I mean they look the same, have similar odd food fetishes, have weird rituals in their marriages and have proclivities toward pedophilia. Just all around similar.
It's numb chucks, faggot. Learn to spell the words you use, geez.