So true. If there are no Christians, Jews, Buddhists,etc. handy to kill or enslave, they will just as enthusiastically do it to other branches of Islam.
We'll exclude atheists for now since they temporarily have forged an alliance of convenience to eradicate Christians and Jews.
Genesis 16:12
He will be a wild donkey of a man;
his hand will be against everyone and everyone's hand against him,
and he will live in hostility toward all his brothers."