I think davem is right that the subtext is only really of relevance
if you want it to be. From my own experience, Tolkien's work caused me to
reject the church and find other meaning to life. I still think his work resonates
deeply at a pre-Christian level, whether we wish to call that pagan or not. That essence struck me as I read it for the first time, and is possibly one reason why I was immediately taken with it. It rang true, but it was a wholly different true than what I learned in church.
However, I know that many readers will just not see that in the work. I also know that many readers will not see any deeper meaning, even if they
do love the book. I also see it as an incredibly modernist work while others see it as a medieval revival of sorts. I like pondering the scientific explanations of what happens in Tolkien's world, others think it takes away the magic. Fair enough.
What Tolkien intended or did not intend is irrelevant really, as few of us would know the slightest thing about that when we first read his work. All we have to go on are our own impressions of it. And for a Christian to read it and then start to question their faith, demonstrates that even if Tolkien did intend it to have a Christian message, it wasn't ever going to get over to every reader.
My answer is that no one faith has the monopoly on the great things we pinpoint about Christianity - trust, honour, courage, honesty, hope etc etc. (nor does Christianity have the monopoly on the difficult things such as sacrifice, suffering and sin). Those great things are just great things about the very
best in
humanity, they are Universal, and we respond to them whoever we are and wherever we are going in life and spirit.
As a Christian Tolkien
of course reflected what was great about his belief in his life work, but they are not exclusive to his faith; nor did he lay it on with a trowel and tell his readers what to think. He was
anything but didactic. You really can read it your own way, because those messages are understood by all good people.