I believe you have it backwards...
For if while we were enemies we were reconciled to God through the death of His Son, much more, having been reconciled, we shall be saved by His life.
- Romans 5:10
I thought RC’s were familiar with
OUR FATHER WHO ART IN HEAVEN . . .
forgive us our sins as we forgive those who sin against us.
= = =
So, is this another case of my ignorance of what the RC’s are, in fact, familiar with and not familiar with?
You’re quite wrong. If you want forgiveness, seek repentance.