I am an atheist. If I were to consider agnosticism that would mean considering possible the existence of every god imagined. What cognitive tool would you use to discern one god from another? So, to be an agnostic is to accept the possibility of Zeus, Krishna, Vishnu, Yahweh, Jehovah, Allah, Odin, Mictlantecuhtli, Quetzalcoatl, Ahayuta-Achi, Ahura Mazda, Mars, Apollo, etc. We do not demand proof of the nonexistence of fairies, Santa Claus, or any other childhood fantasy. No one objects when a child matures and tells us "I don't believe in Santa!' . That is considered a right of passage.
God thinks it's fun to confuse primates. Larsen's God!