You have just called all the Church fathers liars. You know more than they do. Pardon me for believing first Christ, then 2,000 years of Church teaching, starting in the 1st Century.
I believe Christ first, and His willingness to bear my sins actually in His Body on the Cross, on Golgotha; and to not merely cover my sins with His Blood, but to wash them away for ever.
I am keenly aware that He rose from the dead ones and ascended to the Holiest of Heaven, where every drop of His Incorruptible Blood was placed on Heaven's Mercy Seat that The Mighty God's righteous wrath might be proptitiated; and that I might be reconciled to The Father, Who has offered me the gift of intimate fellowship if I but accept the transaction of yielding my sins and myself to His Son for which He would then confer His Son's righteousness upon me in exchange.
I am sad to know that you do not seem to be able to grasp the import of the fact that Jesus related spiritual truths to the multitudes with figurative-literal language, which they were not able to understand without spiritual guidance (See Matthew 13 for example).
But Jesus took His disciples (including Judas Iscariot) aside, and opened their understanding by explaining the method of understanding the mysteries of the kingdom of Heaven. By the time they were congregated for the Last Supper, they were quite familiar with understanding the spiritual truths taught them during His discourses before, during, and after that Supper, using figurative-literal examples throughout.
That is most certainly the mode in which He taught them to recapitulate the special ritual through future generations to make sure they remembered and passed on the sense of His once-for-all=time substitutionary sacrifice to satisfy The God's just wrath pent up to exercise on mankind. He was not telling them that the bread and wine had literally become changed into His flesh tissue and hematological oxygen-bearing blood, some part of them which then would not have gone to the Cross! This does not even make common sense, let alone spiritual, theological, nor physical sense.
No, he was giving them a ritual in which they were commanded to use as symbols to perpetually bring His offering of Himself as the One And Only Sacrificial Lamb which would utterly remove Sin and sins as a barrier to fellowship with the Father.
The only real thing happened on the Cross, and no transubstantiation was instituted, required, or desired to proclaim spiritual truth until His Second Coming. I don't believe He endorsed some kind of dispensation of a chewable for of Grace as the purpose of the Remembrance.