Agreed.
Nope.
If they did, then God would not have sent us their prophets which state all through the OT that they were idol worshipers and followers of false gods.
Nope.
Muslims, like the Jews, deny the Son...thus, they do not have God.
Further, Muslims worship 'allah' which is a pagan Arab false god.
They key is having the right God in the first place.
Admiring someone's fortitude in worship means nothing if they are incorrectly worshiping God, or worse, worshiping a false god.