Greetings:
Ok greetings, says you. But in reality, I could really don’t care what you Protestants think about the Eucharistic Doctrine of the Catholic Church. You think and believe what you want.
At the point of the discussion, the dialogue has not moved beyond eating and drinking food. They, the Jews were looking for food that only nourished them in the temporal sphere. Once he gets them open to believing how He {Jesus} is ,the dialogue moves into the bread of life discourse and the mana as a prefigurement of His Body and Blood is there, mana was something God gave the ancient Jews to eat that helped them live on their journey through the Desert, the Eucharist/Body and Blood of Christ is spiritual food for the soul that nourishes us on the journey of Life.
I stand by that understanding, you do not, fair enough, end of story.
So; given that neither of us is going to convince the other of the 'correctness' of which to believe; let's switch to the presumed CONSEQUENCES of believing one over the over; if there is any.