The data I have is my observation of politics for the past 20 years. The evangelicals are not going anywhere, as they represent the largest voting bloc the Republicans have. Ron Paul can turn out younger people to his rallies, but it does not translate into votes, otherwise he'd be sitting higher than 2-5% in these primaries. Rick Santorum, running as the evangelical candidate has been utterly cleaning Paul's clock state after state. The problem is that the younger generation is so turned off by social conservatism, they don't vote Republican in large enough numbers to make any sort of difference. The ones that do are the ones that sympathize with the evangelicals. Just look at this primary. It came down to the emissary for the 1%, or evangelical Santorum. I don't see the younger generation represented there at all.