Your response is not the typical Cath one, which relies upon the neoplatonic explanation to rationalize the objection, while what you are arguing is that the Jew's objection to physically consuming Christ was justified since at that time what the Lord required was against the Law. And that somehow the "real" presence" was not available at the Last Supper, contrary to Cath theology, or else the apostles understood at the Last Supper that drinking blood was now OK since it would be allowed under the New Covenant.
Actually the Jew's objection to physically consuming Christ was justified since at that time since what the Lord required under the literalistic explanation was against the Law. But which explanation is simply contrary to what Scripture teaches in its totality. As shown here and here by the grace of God.
The honest reader will have to admit they will choose which ECFs they support and which ones they reject.
However the only true writings are those of the Word itself. They do not change and are not subject to human whim or notion.
Rhey are the only inspired Word we have.