Their future? Interesting what happened in Alabama and the demographic who voted and defended Moore, they sure don't reflect what America is, or is going Alabama — a state that Donald Trump won by almost 28 percentage points — elected a Democratic senator in Tuesday’s special election, rejecting Trump’s preferred candidate, a Christian theocrat who was, in recent weeks, accused ofsexual misconduct with numerous teenage girls decades ago. Many news outlets have suggested that that Alabama Christians have had, well, a “come to Jesus moment”; Christianity Today’s headline, for example, read "Roy Moore Was ‘a Bridge Too Far’ for Alabama Evangelicals." But preliminary exit poll results don’t necessarily bear that out. White Christians who identified as “evangelical” or “born again” (a term common in the evangelical community) made up 44 percent of Alabama voters, and a full 80 percent voted for Moore (overall, 68 percent of white voters chose Moore). This was unsurprising, given that nearly all — 94 percent — of Moore voters reported not believing the allegations against him. For them, Moore’s alleged misdeeds were the product of a biased liberal media smear campaign and nothing more. younger evangelicals — who are more socially liberal than their older counterparts — will help bridge that gap. Rather, he says, white evangelical churches “are losing their younger members. If their younger members were to stay in the fold, they would play a role in shifting the view of the whole,” but all too often, younger evangelicals choose to leave their churches — if not religion itself — behind. “What we would expect of a normal generational effect [of young people’s influence] has been muted." https://www.vox.com/identities/2017/12/14/16773892/roy-moore-loss-evangelicals
vox's argument logically extends to the continued aging of the evangelical base, particularly in the South, as younger more socially liberal evangelical voters move onto new churches. The influence, over the next decade, of hard core evangelicals will decrease with their rapid death rate due to age.
That doesn't mean people are going to suddenly start voting democrat if the democrats don't have anything to offer people