I’ve never heard a Catholic bring up, much less answer, why Jesus didn’t give the twelve disciples from His actual flesh and blood since He has and had a body, and was physically present with them both before and after His death and resurrection. Doing *that* was what those who rejected Jesus in John 6 had in mind.
Obviously that accomplished the turning away of those whom the Father had not given Him, save the son of perdition. On the night of His betrayal, all that was clearly communicated to the men His Father had given Him.
I am going to trust that Bible Christians know the references. Later still were eyes opened in the "breaking of the bread."