Marriage for all might be one fissure too far.
Let me give you a personal anecdote. For most of my working life, I've worked in the belly of the beast, IE massive multinationals. And in that time, I've seen thousands and thousands of layoffs. Myself, I've been outsourced, in-sourced, trained my replacements, and been converted from full time with benefits, to contractor status with no benefits. I was laid off multiple times from the late 90's to the late 2000's. Since i was a healthy young man, without kids or a mortgage, i was able to handle the massive transitions, i was able to bounce back. Others that were older, and not as healthy, with larger bills, were not as lucky. It's one thing to get laid off at 21 or 25, and quite another at 45 or 53 years or age.
Employees that had worked for these corporations for decades were discarded as if they were trash. I've seen people battling cancer laid off, women that just gave birth laid off. Employees with sick children laid off. Unfortunately, many of these workers weren't able to bounce back as quickly as i had, and some never recovered at all.
As I moved from one company to the next, and the next after that, the mass layoffs happened in the same way, and i began to notice a trend. The men that laid off thousands of people wore christian crosses, and they had prominent american flags pinned to their walls. But these same men were laying off sick, elderly, and loyal Christian Americans, then they proceeded to replace them with non Christian foreigners en masse.
Now here is where it gets interesting. Before i entered the work force, i considered myself a christian, a patriot and a capitalist, the American trifecta. After watching too many lives shattered by my capitalist bosses, i began to question everything i thought the USA stood for.
Being naive, i tuned into fox news to see if they had answers, and i learned about a war on Christmas, and on marriage. You see fox news pundits were pissed that people were saying "happy holidays" instead of "Merry Christmas" but they didn't seem pissed about massive american corporations that replaced loyal Christian Americans with non Christian foreign labor to increase profits.
Keep in mind, these corporations were profitable when they laid off Americans, they just weren't profitable enough to satisfy personal greed at the top. The people that laid off Americans grew their wealth from millions to billions, but they did it in an unchristian, unpatriotic fashion.
So if the Christian American way is to kick sick American workers to the curb, and spit on them as they suffer, why would that coalition not crumble?
Christians have wasted years fighting marriage equality, when they should have been fighting income inequality.
Capitalism has beaten Christianity to a bloody plup, and as Christians continue to lose influence and power, i wonder what's next.