For whatever it's worth, I'm not religious. So I don't necessarily subscribe to the conclusion that God is a man. The appeal to that authority doesn't work with me.
My only point is that the structure of the church is sexist in favor of men. If you think that's fine because it's how God wants it to be, cool. I'm okay with that. Make that argument.
But don't argue that it's not structurally sexist. It very clearly is.