Ah, gotcha right here:
"What's not debatable is the fact that a man or woman can be re-married (in sin), receive an annulment of the previous marriage, and be returned to good standing in the church. "
Where in the Bible does God reveal that annulment is acceptable?
"Where in the Bible does God reveal that annulment is acceptable?"
It doesn't.
NO WHERE!
That's why Catholic often give you distasteful remarks that actually shows their true colors when confronted. It's a scam for money and allows them to day they do NOT "divorce" people - LOL! It's the same thing with a different label.