GREAT QUESTION!
Thanks for asking it.
As for the Jews arguing among themselves:
The isse was for SOME [a lack of faith] seen as cannibalism BUT by others IN FAITH granted by the HS, not understood; YET Jesus was accepted at HIS WORD based on FAITH, Hope and Love.
LOOK at these following passages
[65] But there are some of you that believe not. For Jesus knew from the beginning, who they were that did not believe, and who he was, that would betray him.
66] And he said: Therefore did I say to you, that no man can come to me, unless it be given him by my Father.
[67] After this many of his disciples went back; and walked no more with him. [68] **Then Jesus said to the twelve: Will you also go away? [69] And Simon Peter answered him: Lord, to whom shall we go? thou hast the words of eternal life. **[70]
And we have believed and have known, that thou art the Christ, the Son of God.
NOTICE He didn’t further clarify this for them; ONLY asked do YOU wish to desert ME too?
[71] Jesus answered them: Have not I chosen you twelve; and one of you is a devil? [72] Now he meant Judas Iscariot, the son of Simon: for this same was about to betray him, whereas he was one of the twelve"
So Faith and with it RIGHT understanding can ONLY come as granted by God, on His initiative AND OUR WILLING acceptance and desire to KNOW the [always singular TRUTH.]
It is the GLORIFIED {Risen} Body, Blood, Soul and Divinity of Jesus that is PRESENT in the Most Holy Eucharist; not his corporal body. TIME is in nonexistent for God, Everything is PRESENT-time
That is the difference between human logic and Divine reality:thumbsup: In FAITH verses unbelief. “Because I can’t understand it; it CAN"T be true” … How foolish.
Eucharist is a Mystery and a miracle

Are we to presume God cannot do this?
GOD can do ANY good thing!
And permitting HIS priest to make HIM Present to us is the GREATEST possible Good thing possible on earth. PERIOD! AMEN
God Bless you
Patrick