[DungeonMaster]

The current pope may try to diminish the title of "co-redeemer" for the moment. But that hasn't stopped Catholics on this forum from saying Mary is on the cross with Christ and helping Him to save His sheep.

RCs say, if Mary had not agreed to become pregnant, the plan of salvation would not have worked. My response is, "If Mary's parents hadn't....... so why not honor, venerate, adulate, glorify, revere, love, praise, enshrine ete etc etc etc them also?".

[DungeonMaster]

They could be “Grandparents of God”.

[Mad Dawg]

Ever hear of Sts Joachim and Anne?

Incidentally, for the record, I think hypothesis contrary to fact makes a bad argument. We don't and can't know what might have been had Mary said, "No." Aslan never says what might have been had something happened which didn't happen. I know 'cause I saw the movie.