White Christians are deeply bothered by sin in society. However, those in secular society don't much like it when white Christians discuss abortion, sex before marriage, or homosexuality - it's not politically correct. Speaking out about against poverty, on the other hand, is like denouncing those couples who sit on the same side of a booth when no one is on the other side: it's something everyone can agree on.
"Caring for the poor" isn't terribly nuanced or sophisticated though, nor is it very specific, so many white Christian churches seized upon the term "social justice" as a substitute. This was all going along swimmingly until the political commentator Glenn Beck urged his viewers to abandon these churches, arguing that social justice was just disguised left-wing politics (and as such, equal to Nazism and communism).
Left-wing churches became very angry that their schemes were being revealed, while non-political churches were angry to find out that the trendy phrase they were using to mean "caring for the poor" actually could mean left-wing ideology. Other churches were angry to find out that "caring for the poor" by voting for greater income redistribution is considered a political stance. And the white Christians who select their churches based on the advice of Mormon political commentators were angry that the social justice types were angry. In short, everyone was angry.
Thus the common purpose that white Christians sought with secular society and each other was all for naught. This lack of agreement could easily spread to other issues. In the future, it's possible that not only will couples be able to share the same side of a half empty booth without derision, but these same couples, when talking to their pets, will be allowed to refer to themselves as "mommy and daddy."