Polytheism teaches several gods. Christianity teaches but one God. The three Divine Persons share the one Divine Nature, and are but one God. The other beings you cite are declared by the Church to be creatures, and cannot be used as an argument for the plurality of gods. If we taught that they are gods, you could rightly accuse us. But if we solidly maintain that they are not gods, it is irrational even for a rationalist to accuse us of ranking them as gods.
Radio Replies Volume 1 by Rev. Dr. Leslie Rumble MSC and Rev. Charles Mortimer Carty