The NeoConservative movement has cynically used the Evangelical Right, with its strong Calvinist sentiments, to lock up a voter demographic for which they has no real allegiance.
The NeoCons are economic liberals, they are social libertarians, the moral relativists, radical individualists... nothing could be further from Christian economics.. which is dirigiste, morally absolutist and promotes responsible Free Enterprise.
So Trump's nomination far from being a disaster for the Christian Right, it is in fact its salvation. The homogenous support of Evangelicals the RP has been eroding for decades.. who've become increasingly aware of its hypocrisy.
Trump is no angel.. be he's far from the Devil's brew of Global Free Market Capitalism promoted by NeoCons.. which has brought ALL Americans, excepting a few billionaire hedgefund parasites, to their knees.