How you come up with this is a leap of imagination.
For the very chapter you quoted from 1 Corinthians keeps stating bread, and cup.
Now all references to marriage is the Eucharist?
What is the stated Gospel of Christ the apostles preached and proclaimed?
Also, at the Last Supper were the disciples eating the literal body of Christ and drinking the literal blood of Christ while He stood there before them?
For 2,000 year the orginal Christians, Catholic and Orthodox, have been participating in this ancient sacrament. But you and the rest of the Catholic bashers on FR know a lot more than all the earliest Church fathers. You even know more than the founder of protestantism, Martin Luther, who shared the same beliefs that his fellow Catholics practiced 1,500 years before he existed. These brilliant theologians on FR are even smarter than the founder of their faith. How can poor Catholics ever claim to have mastered the Word of God of like the Catholic-haters on FR.