Their Allah is definite not the Biblical God. Their Allah teaches them to lie to, attack, subjugate, and kill Christians and
Jews ( and other innocent people). This is most definitely not Biblical One true God. The issue is not that they know the one true God poorly, the issue is they their god is in direct opposition to the one true God (and His peoples). There are probably some Moslems who think they are praying to the right guy. But, It’s what they may think or claim they think that matters. It’s what their god actually teaches that counts and that reveals their god’s real identity. There is only one force so evil as to teach the mass murders of millions of innocent peoples just because they’re Christian or Jewish believers in the biblical God. By its fruits ye may know the tree...
“This is most definitely not Biblical One true God. “
I understand the point you are trying to make, but have you ever seen the orders that came down from that Biblical One true God?