Saying "because we want to" isn't exactly taking things seriously yourself. And so far, I have not seen "Protestant falsehoods" illustrated on any essential matters.
I don't mean to be flip with this, but like I wrote (maybe not to you) a few days ago, I have not studied St. Anselm's theology in sufficient depth in order to discuss it. Regarding the Eucharist as sacrifice, it is one and only, perfect sacrifice of Christ. We do not re-sacrifice, but we bring ourselves to that one sacrifice through the Mass. Our purpose therefore is the same as Christ's purpose, so whether God "demanded" the sacrifice as you insist (there are verses to the contrary, as you are aware), or Christ offered it as an expression of His love to us, -- as is the proper answer, -- the fact that we participate int he Eucharist is neither here or there in that.
And so far, I have not seen "Protestant falsehoods" illustrated on any essential matters.
I made several posts on this thread, most to you, regarding the two falsehoods: the notion that Bible alone is sufficient for all essentials of the faith, and that works are a mere product of faith, which alone saves. On the first falsehood, logic requires that you find a verse that teaches Sola Scriptura; such verse is not in evidence. On the second we have virtually every page of the New Testament exhorting good works, we have clear explanation that we are judged by them, and we have the explicit statement contrary to the Protestant belief of Sola Fide in St. James. If you have more spin in addition to the stuff you had offered on these, or if more books of the Bible have been redacted by the Protestants since last we spoke, be my guest.