“Baptism dogma is useless for the thief on the cross...”
I don’t know what you mean by the dogma being useless. The dogma might simply not apply because of his situation which prevented baptism at that point. That doesn’t make the dogma useless. It just means it isn’t applicable to him.
http://www.catholic.com/magazine/articles/dismissing-the-dismas-case
In any case, God is merciful to those who sincerely repent. The Good Thief seems to have done that. We call him St. Dismas.
Baptism doesn’t cause salvation.
The only sin Christ mentions in John 16:9 that God the Father condemns anyone in the world is disbelief in Christ.
Even those who PROPTEST the RCC?