Of course Jesus was a man!  And so is God the Father!  Of course, to say God is a man means that He has genitalia and chromosomes, which implies a physical limitation on the Supreme Being, but as you point out, many believe this so it must be true!  And because God is Man, only Men may be priests.  But I am saddened that you implicitly deny the Trinity, citing only to Jesus for your infallible argument that God is a Man.