It is not likely that you will ‘get through’ to someone who insists they must work to obtain righteousness. That is the core of catholiciism, that they must work to be worthy to eventually be born from above. Human pride is so deeply ingrained, it will reject the Promise of God if pride insists they earn what God offers by His Grace. It is as id they can insist that they had a hand in their conception and birthing ...
“It is not likely that you will ‘get through’ to someone who insists they must work to obtain righteousness. “
True. And that is the lie that Purgatory is built on - that WE must pay the penalty of our sins, and can then stand before God.