Can't the 3 Abrahamic religions unite?

Being a Christian means believing that Christ died and descended into hell to free us from Lucifer, and since Lucifer is the one who rebelled against Christ and we fell with him, so we have to go back to being on Christ's side in order to return to Heaven. The Jews don't believe that Christ saved them, they still live by the law of Moses and are waiting for the savior. The Muslims do not believe that Christ saved them either and by the way, Allah is not God but only one of the ancient Arab gods, so not all religions are that pure as you say. You may all be peaceful but that's not enough to make us all the same.