The indissolubility of marriage is not the only mandate. All of God’s commandments are mandates, not options. For sure, the re-married Catholic breaks the mandate but this does not end there. This is why we have annulments that go far back and recognizes human frailty and repentance. The attacks on Pope Francis we have recently seen on FR have degenerated into ad hominem stuff. Christ did not turn away from the much-married Samaritan woman who at the time had a live-in lover. Communion is a one-o-one Divine Encounter not some meaningless ritual or a liberal label to be applied for branding the fallen.
You really don’t understand declarations of annulment, do you?
Christ told the woman to go and sin no more.
What part of that do you not comprehend?
THE SIXTH COMMANDMENT
"Thou shalt not commit adultery"
THE POSITION OF THIS COMMANDMENT IN THE DECALOGUE IS MOST SUITABLE
"The bond between man and wife is one of the closest, and nothing can be more gratifying to both than to know that they are objects of mutual and special affection. On the other hand, nothing inflicts deeper anguish than to feel that the legitimate love which one owes the other has been transferred elsewhere. Rightly, then, and in its natural order, is the Commandment which protects human life against the hand of the murderer, followed by that which forbids adultery and which aims to prevent anyone from injuring or destroying by such a crime the holy and honorable union of marriage - a union which is generally the source of ardent affection and love..."
catechism of the council of trent
"Therefore whosoever shall eat this bread, or drink the chalice of the Lord unworthily, shall be guilty of the body and of the blood of the Lord." (1 Cor 11:27)