THE EVANGELICAL COLLAPSE
The political definition of evangelical (Euro-American generally low church Christian) has always been better than the one put forward by institutional Christian "thought leaders" (ICTLs). Demographically, people only represent a group if they freely associate within that group. Because people do not intimately associate with people outside their own ethnicity it has never made sense to group minority ethnic Christians in the same demographic as Euro-American Christians. African-American church members have little in common with the average white American church goer, and their socio-political worldview could scarcely be more different.  The difference between African-American and European-American Christians is evidenced by the ethno-political segregation of schools, residential communities, political establishments, and, most importantly, churches. The pollsters who segregate evangelicals into a predominantly white caste are merely expressing social reality.
This reality is repulsive to most ICTLs who still fervently believe in the hypocritical message of ethnic revolution put forward during the Civil Rights movement of the 1960s. These leaders are often out of touch with the average evangelical, and their opinions are dominated by elitist thinkers who have a vested interest in maintaining the narrative of the establishment. The ICTLs desperately want to demonstrate that their religious movement can assimilate into the popular liberal trends of the time (if only as a rear guard). 
The problem for these thought leaders is that their subconscious Christian Cultural Marxism, which morally leans upon the Civil Rights movement, is that a large percentage of evangelicals have never accepted the racial and ethnic revolutions of the 1960s. This non-conformist group has slowly drifted away from the institutions of evangelicalism because they no longer see their interests and beliefs reflected in the establishment narrative. This is the disillusioned demographic who now support Donald Trump despite the torrent of abuse poured upon him by ICTLs. These voters still self identify as evangelicals even as they fail to regularly attend the rambling sermons of liberal preachers who praise degenerates like Martin Luther King Jr. and Nelson Mandela.
The crack in evangelicalism's once reasonably united facade has led to a reconsideration of what it means to be an evangelical. The loyalties of Christian thought leaders are being revealed. They have been unmasked as more tightly united with the establishment narrative than with the real Christians who are suffering under the current liberal thought regime.
At Christianity Today, editor Mark Galli authored a confused piece on how evangelicalism is an ethnically pluralistic movement, and that "racial justice" (i.e. the advance of the Civil Rights revolution and erasure of Euro-American identity) was a core pillar of the emerging evangelical platform alongside the pro-life and religious liberty agenda:
"In the last year and a half, another social justice issue has risen in prominence for evangelicals, and I’m beginning to think it has become a first-order social issue: racial and ethnic justice... Since the racial disaster in Ferguson, Missouri, the amount and intensity of Facebook and Twitter comments/blog posts/commentary/conversations about racial injustice, the number of evangelicals who support #BlackLivesMatter, the passion for multicultural initiatives—well, it has become a tsunami that has changed the evangelical landscape." Galli is right to say that since Trayvon Martin, Ferguson, and Charleston there has been a vocal bloc of liberal evangelicals who have turned the issue of "racial justice" into a Christian one. The problem, however, is that in redefining evangelicalism as a movement that acts upon the lies surrounding these incidents of perceived injustice  ICTLs have alienated the large group of Trump evangelicals who never believed in the Cultural Marxist narrative.
Evangelicalism is now facing a crisis. It only existed as an effective socio-political bloc because of ethnic and racial continuity in the Euro-American Christian demographic. Now, as the divide between liberal thought leaders (and their disciples) and the masses of subconscious reactionaries becomes more gaping, evangelicalism will crack up along ideological lines. The center that formally held the coalition together is collapsing.
Even the coalition name, "evangelical," is under attack. Russell Moore, president of the Southern Baptist Convention, wrote an article entitled, "Why this election makes me hate the word 'Evangelical.'"  When the leader of a movement publicly disowns its name and shows disgust towards the tendencies of half his coalition, one can safely assume the movement is in crisis.
Evangelicalism must collapse because its branches are heading in opposite directions. The liberal elites and their followers are becoming more liberal and invested in Cultural Marxism; in so doing they have made it impossible for the "rank and file" Christians, who cannot embrace the lies of #BlackLivesMatter and racial egalitarianism with a clear conscious, to follow them. Evangelical institutions will collapse as distinctly evangelical because the liberal elites are too small a group to provide the resources necessary to maintain them as they are.
 98% of African-Americans (most of whom attend church) voted for Obama. Less than half of Euro-Americans did and only a tiny fraction of evangelical whites voted for him.
 "Conservative" American Christianity seems to have been content for the last few decades with its role as establishment approved pseudo-reaction. The movement does nothing to shape the social and political landscape of America besides the occasional weak whisper of "slow down" and "don't leave us behind."
 Christians institutions and thought leaders have shamefully acted as though police brutality against African-Americans is an actual phenomenon. They continued to parrot deceptions like "hands up, don't shoot" long after it was revealed to be lies. Worse, many of them pretend that not supporting the racial revolutions is un-Christians.
 Galli, Mark. "Is This Election Shaping the Future of Evangelicalism?" Christianity Today. March 9, 2016. Accessed March 12, 2016. http://www.christianitytoday.com/ct/2016/march-web-only/is-this-election-shaping-future-of-evangelicalism.html?share=P7fcYtul9dY1vMutZ8ZyFCtdB%2f3IksT9.
 Moore, Russel. "Why this election makes me hate the word 'evangelical.'" The Washington Post. February 29, 2016. Accessed March 12, 2016. https://www.washingtonpost.com/news/acts-of-faith/wp/2016/02/29/russell-moore-why-this-election-makes-me-hate-the-word-evangelical/.