I think that the point of the article and of the thread is not to debate transubstantiation but to simply say that the Catholic Church doesn’t give us a choice. Protestants who do not believe in transubstantiation should consider us to be idolators. It’s that simple. It really is the true body and blood of Christ or all of us Catholics are evil, corrupted, demonic, idolators. It’s sort of like the analysis of Jesus. He’s either crazy, evil, or He really is the Son of God. Not a lot of wiggle room. Anyone interested in further study, I highly recommend that they read Rome Sweet H by Kimberley and Scott Hahn. Scott was well known Presbyterian minister and teacher who converted (swam the Tiber). His analysis is amazing. His wife fought it all along but eventually also converted.
Sorry, should be Rome Sweet Home.
No Church is infallible, and no Church has 100% agreement on anything - thus the notion that you have no choice is wrong - and the comparison of this to the most fundamental truth of all of recorded history is a straw and false comparison.