I disagree -- as I've pointed out in other posts, this decline in faith is apparent across various denominations and more importantly across different religions -- Mormons, Hindus even Moslems experience the same with increased "Westernisation" -- the culture of television, Sunday mall, etc.
People need something to "worship", so many now worship their tvs and TV American Idols...
Secular Humanism is the dominate worldview in our culture. And close to 90% of those who profess to be Christians hold a non-Biblical worldview, which is why the church looks so much like the world today, and why so many realize that if the church looks like the world, why do I need the church?