Nor can I find him saying that there must be grape wine and wheaten bread.

Now that  you have severed the Eucharist from the Church’s theology of the Eucharist, the sky is the limit.

I don’t imagine for one moment that anyone thinks you believe that Jesus' maleness is essential for the redemption, let alone the priesthood.

What you seem to be unable to do is articulate a coherent theology of the Eucharist which might induce someone to share your doubts.

It is really very simple, if I buy your musings anyone can be a priest, even one who is not ordained, any berry can be used for an element, any caryopsis grain - wheat, rice, corn - can be used as an element.

What this would an icon of I can’t quite grasp.