Interesting discussion re: religion and it's political implications.

I think the issue of religion in politics in the USA, and Christianity in particular, is way more complex than the media tends to portray it. If you look at actual statistics, the Democratic party actually has a large percentage of religious people, many with theological and social views (e.g., abortion, marriage, family) that are not too far off from white evangelical Christians in the Republican party. But most of those religious folks are people of color, whereas as white Democrats are usually secular. African-Americans, who vote overwhelmingly for Democrats, have a long and deep tradition of Christianity in the US, and the civil rights movement was heavily influenced by Christianity.

As far as the evangelical support of Trump, while it is true that something like 80% of white evangelical Christians voted for Trump, there have been studies that correlated voting patterns to actual church attendance with some interesting twists. Turns out that self-identifying as evangelical on a survey does not necessarily correlate to actual religious practice. In fact, the people who are most loyal in supporting Trump tended to be the least observant, i.e., they attended church infrequently. I've also seen some statistics that indicated that Bible literacy also had a big influence on political leanings. Pastors and others who are more formally educated in the Bible did not strongly go for Trump, whereas support was stronger for folks in the pews.

From what I've observed, one's actual religious belief seems to have less of a role on which party one supports compared to race, class, and one's position within culture. To put it bluntly -- white people who are Christian in the US overwhelmingly support Republicans, whereas African/Hispanic/Latino/Asian Americans who are Christian tend to support the Democratic party (esp. African-Americans), or at the very least are more mixed and not so predictably Republican (Hispanic and Asian). If you look at the issues that white Christians care about compared to Christians of color, the issues almost always diverge with respect to power dynamics and cultural dominance.

Exhibit A is abortion. It turns out that white Christians and Christians of color pretty much have similar opinions on the morality of abortion. Where they diverge is on policy, which reflects power dynamics. White Christianity has been culturally dominant in the US for a long time, and so they approach abortion from the perspective of someone who has historically had access to the levers of power -- i.e., legislation. Christians of color have operated on the margins and are used to operating on the margins, so their first instinct is to address abortion from a grassroots approach rather than a legislative one -- i.e., reduce the need for abortions rather than trying to make it illegal.  So you don't find abortion as an issue that affects voting patterns among people of color because for those who care about it, they see the solution as existing outside of the political system, or addressed indirectly through other issues (e.g., health care, paternal leave policies).