Your thoughts are of recent times and not of the early Church that Christ established. It is a new Gospel, a product of sola Scriptura where scripture is separated from The Church that produced it.
“For not as common bread and common drink do we receive these; but in like manner as Jesus Christ our Saviour, having been made flesh and blood for our salvation, so likewise have we been taught that the food which is blessed by the prayer of His word, and from which our blood and flesh by transmutation are nourished, is the flesh and blood of that Jesus who was made flesh.” Justin Martyr, First Apology, 66 (A.D. 110-165).
“He acknowledged the cup (which is a part of the creation) as his own blood, from which he bedews our blood; and the bread (also a part of creation) he affirmed to be his own body, from which he gives increase to our bodies.” Irenaeus, Against Heresies, V:2,2 (c. A.D. 200).
“You will see the Levites bringing the loaves and a cup of wine, and placing them on the table. So long as the prayers and invocations have not yet been made, it is mere bread and a mere cup. But when the great and wonderous prayers have been recited, then the bread becomes the body and the cup the blood of our Lord Jesus Christ…When the great prayers and holy supplications are sent up, the Word descends on the bread and the cup, and it becomes His body.” Athanasius, Sermon to the Newly Baptized, PG 26, 1325 (ante A.D. 373).
"Then He added: ‘For My Flesh is meat indeed, and My Blood is drink [indeed].’ Thou hearest Him speak of His Flesh and of His Blood, thou perceivest the sacred pledges, [conveying to us the merits and power] of the Lord’s death, and thou dishonourest His Godhead. Hear His own words: ‘A spirit hath not flesh and bones.’ **Now we, as often as we receive the Sacramental Elements, **which by the mysterious efficacy of holy prayer are transformed into the Flesh and the Blood, “do show the Lord’s Death.’” Ambrose, On the Christian Faith, 4, 10:125 (A.D. 380).
Who better to believe Poco? St Ambrose and the other Early Church writers (who clearly also had a different understanding of John 6 than you) or someone 1,500 years later who espouses a symbolic meal saying that a sacrifice is no longer required?
Or should we believe Theodore or again someone 1,500 years later?
**" he did not say, ‘This is the symbol of My Body, and this, of My Blood,’ but, what is set before us, but that it is transformed by means of the Eucharistic action into Flesh and Blood." **Theodore of Mopsuestia, Commentary on Matthew 26:26 (ante A.D. 428).