When attacking an epistemological structure, it is a often a waste of time to attack the consequences of a belief system when one can cut it down at the root. Islam has such a bizarre problem. And Muslims avoid it, for fear it would cause the whole religion to collapse.
Islam, like Judaism, is monadic. It only admits of a hard absolutely unitary deity.
However, Islam makes an amazing contradictory statement: the Koran is eternal.
This introduces a real problem. Anything which is eternal is, by definition, deity. And that strikes at the very core of Islam’s claim to a hard monotheism.