I’ve seen the chart. If you’re defining “social conservative” as somebody that goes to church, and submit that they are the “backbone of conservativism”, then according to that chart somewhere between 18 and 50 percent of our backbone is attempting to sever our spinal chord.
The more religious, the more conservative. Social conservatives are the ones that show up and vote overwhelmingly conservative.
Social liberals and the anti-God people are the exact opposite, we get a few of them, but they support liberalism by a HUGE majority, even the few that we get are generally fighting to move us to the left on many issues.