You wrote:
“Do you deny that Paul used the phrase “eat this BREAD”?”
Do you deny that St. Paul used the phrase “LORD’S BODY” and “BODY AND BLOOD OF THE LORD”?
And what is it that St. Paul says will happen to those who do not discern the BODY OF THE LORD? (1 Cor 11:29)
If someone was referred to as a “princess,” an “angel,” and a “daughter” ... wouldn’t you assume that the least supernatural description is the most accurate? In other words, I call my daughter a princess and an angel, but she is not literally either a princes or angel; she is my daughter.
Similarly, Scripture refers to the bread as both “body” and “bread.” One of those is literally true: that what Scripture labels as “bread” is, in fact, “bread.”
But you’re free to think it’s corpuscles and ligaments and such.