a Marian apparition told someone to pray for Protestants in Purgatory... bc they have no one to pray for them. Protestants don't pray for the dead as they feel it is too late. I admit I didn't read your whole post but this sentence stood out, don't know if you believe protesters don't make it to purgatory or ?
Not one Protestant can be saved, they are all damned. They are damned because you placed the qualifier that they are Protestants. Do you understand?
If a person during their life was a baptized Protestant, when he dies, all we can say is that he could have been saved had he repented of his heresy and became a Catholic and of course repented for all his mortals sins and would go to confess his sins to a priests if one was available. A conversion which would be unknown to everyone. That person would no longer be a Protestant and would be saved as a Catholic, and no one would pray for them because Protestants do not pray for the souls in Purgatory. I do not use private revelations to learn about the faith when I have clear dogma from God Himself. This would be how I would interpret your Marian "apparition", if it is legit.