**It seems he learned on his own by reading magisterial documents and going back to Scriptures in light of those documents.**
I think this is why many well-read celebrities become Catholics — they do the footwork — the reading!
It’s better that “celebrities” become followers of Christ than mere “Catholics.”
In the end, it’s not what church you affiliate yourself with. It’s Whom you affiliate with.
Roman Catholicism is fine. But folks are saved from damnation through Christ, not through Rome. If they’re a member of the Roman branch of Christianity, fine. If they’re a member of the broader branch of Christianity, the “remnant” if you will, then fine.
But it’s about Jesus, not about Rome, the Vatican, the Pope. It’s about Jesus.