Praying to dead people is necromancy. Forbidden by God.
If the saints in heaven are "dead," then Jesus wasted his time. Besides, he explicitly rejects that idea in Mt 22:32.
Necromancy is consulting the dead for the purpose of fortune-telling, which is why it's condemned in scripture with other forms of fortune-telling, and why the Catholic Church regards it as seriously sinful.
For there is one God, and one mediator between God and men, the man Christ Jesus. I Timothy 2:5 (not the saints)
And you are purposefully twisting Matthew 22:32 to meet your agenda. They are dead in their body and their spirits are moved to Heaven or Hades. Talking to the dead is witchcraft.
That is why Saul got in serious trouble with God when he tried to call up Samuel.
As for Tolkien, I can pick whatever name I want as long as it's not taken by anyone else. If it's so important to you, why didn't you take it when you had the chance? I like him for his authorship, not his religion.
I’ve even met a man who dresses like a Catholic priest just so that he can, well, I’m not sure. But, he doesn’t believe in the Teachings of Christ. Perhaps that’s the desire of taking a name that is solidly Catholic; yet, turning discussions against Catholic Teaching. Perhaps it’s unconscious in this case, or just a real admiration for a Catholic writer.