It is unfortunate that this needs to be explained so much these days, but Christianity is a historic faith – it reflects a God at work though human history, and His work recorded in Scripture needs to be understood in the context it was done. The notion of a “Bible Christianity” shorn of the baggage of history always leads to a hermeneutic where the Scriptures are read through the prejudices of the age, with modernist assumptions. The great blessing of the Christian walk is that it offers freedom from slavery to the age in which the Christian lives. (Rom 12:2) In a mad world of constant tumult, it grounds the soul in a Truth that does not change, (Mal. 3:6) and in that Truth lies immortality. (John 3:16)
The same Scriptures have been studied by the church for nearly two thousand years, and the timeless message in them is the message that has been understood by the church throughout that time. For that same reason, for anything to supplant the historic faith something would have to come along showing itself more conducive to those who confess it. From what I can see, there’s no sign of that.