i think...socially, this is called 'secularization.' one 19th century German sociologist termed it 'disenchantment of the world,' basically...society, as a whole, looks to science and rational explanations, not...religion, priests, witchcraft, what have you. its interesting...i mean, in a sad way, as a Christian...
even in places where the numbers of Christians is growing, secularization holds true. get Christians in just about any nation, anywhere, to take a survey on core beliefs...
surprisingly -few- line up with Christianity 101. Jesus speaks of this, of course, how 'the love of many shall grow cold' and on the flip side, how people who were big time in religion will cry out to Him at judgment day, and He will say 'depart from me, ye workers of iniquity! I never knew you!" and so...
I did read -one- piece of good news...with Christianity, more so than other major faiths, social scientists have come to the conclusion that there are, in fact, true believers. lol. how's that for good news? but seriously...it lines up with the great apostasy, the great falling away, the great deception, and the idea of a last days remnant. i think it also fits nicely with the understanding of Christianity as a personal, developing relationship with Jesus, and also with the idea of the 'visible church' vs the 'invisible church.'
not to say that those who 'fall away' were not truly converted. a true, dyed in the wool calvinist might very well argue such...I'm not so sure. just to say that 'the personal is political' (paraphrase of 60s slogan, lol), and therefore its not just individual Christians, here and there, falling away...
its the way the world is moving, changing. i dunno. i never 'got' church. never fit in, too old (25) when I was indoctrinated for it to really 'stick,' then I had my so-called "spiritual awakening" (shrink's term, not mine) when I believe Jesus gave me sense enough to call out for forgiveness, and...
-sigh- i still don't -do church- , not sure i can deal with church. religion, in general, is a social institution. nothing wrong with that...but I don't think social institutions can genuinely save anyone, anywhere. Jesus can and does.