This is a good time to repost the quote of St. Athanasius at the bottom of this blog. The Mass is the hill we die on. It cannot be abrogated and any attempt must be resisted:

YOU ARE THE ONES WHO ARE HAPPY; YOU WHO REMAIN WITHIN THE CHURCH BY YOUR FAITH, WHO HOLD FIRMLY TO THE FOUNDATIONS OF THE FAITH WHICH HAS COME DOWN TO YOU FROM APOSTOLIC TRADITION. AND IF AN EXECRABLE JEALOUSY HAS TRIED TO SHAKE IT ON A NUMBER OF OCCASIONS, IT HAS NOT SUCCEEDED. THEY ARE THE ONES WHO HAVE BROKEN AWAY FROM IT IN THE PRESENT CRISIS. NO ONE, EVER, WILL PREVAIL AGAINST YOUR FAITH, BELOVED BROTHERS. AND WE BELIEVE THAT GOD WILL GIVE US OUR CHURCHES BACK SOME DAY.