It is debatable whether Atenism was monotheism. It has been called henotheism, monolatrous, and proto-monotheism. The Great Hymn to Aten makes reference to other gods like Ra-Harakhti, and Shu. "Adoration of Re-Harakhti-who-rejoices-in-lightland In-his-name-Shu-who-is-Aten, living forever;" - Miriam Lichtheim , Ancient Egyptian Literature Volume II: The New Kingdom pg. 96 Our clearest evidence that Atenism was monotheism is because Akhenaten crossed out the names of other gods, but doesn't cross them all out. So there is a discrepancy as to whether Atenism was monotheist at all or henotheist. Is there anything else to say in defense of Atenism as monotheist?