From the poll:

Two-thirds of U.S. adults today perceive that the influence of religion in American life is waning, while just 27% believe it is rising. This represents a sharp decline in the image of religion compared with only three years ago, when 50% thought its influence was on an upswing, and marks one of the weakest readings on the influence of religion in Gallup's five-decade history of asking the question.

I doubt this has God too concerned. He still sits in the heavens and does whatever pleases him--regardless of polls.