Ignoring recent SoCon Senate losses in red states such as Missouri and Indiana, let's talk about this.
Millions of disaffected conservatives DO care about creation/evolution, morality, contraception/abortion, and homosexual issues.
The problem social conservatives face is that they are all concentrated in geographical areas that aren't competitive in a national election.
Not only have Republican candidates lost by not stressing these issues, but as a result, we are losing ground on these issues too.
Before we can even put this argument to a test, a SoCon candidate needs to survive the primaries. This is where we have problems.
Let's take a hypothetical SoCon candidate, strong on social issues like abortion, gay marriage, creationism, Biblical morality, etc. This candidate is going to do well in the South and will do good in the Midwest.
And we get a map that looks like this:
Mitt Romney was orange.
Now an argument can be made that our primary system is broken. Personally, I think it is silly that we let blue states choose our candidates. I think a system needs to be put in place that gives red states in the previous election greater weight in the upcoming primaries. But until we address this, this is the uphill battle that social conservative candidates have to face.