Mrs. Mosley's mother has a standard response to anyone who states, "I don't have time to do it." Her response is, "No, you do have time, it's just that you're devoting that time to other things that you deem more important." In other words, it's a matter of prioritization over time.
That being said, allow me to report a comment by NavelGazer over at the Metafilter thread:
When I was working at a Nola Law Clinic this summer, there was this church-affiliated group who came by once a week with a van full of food (sandwich materials, chips, fruit and the like) to give us a free lunch for our volunteer efforts. Apparently they did this with volunteer groups all over town. They never tried to preach to us, just called ahead to make sure nobody wasted money on lunch that day, fed us, joked with us, and cheered us on for our efforts. They didn't have much money, but they did what they could. And they did this all over town, in a town that needed it's old sense of community back more than anything.
Now I'm an athiest, but I'm not going to shit on good people walking the walk of their Christianity. The world is a little bit better for having that group of Christians in it.
NOM, on the other hand, is very well-funded, and uses its considerable endowment to spread fear and hate, and even there they seem to know that there's no true foundation for it. Being intentionally vague about what rights are being taken away is only a tactic you use if you know you don't have real examples. So not only are they bigoted and full of shit - they know they're bigoted and full of shit. These aren't Christians by any definition I'll give credence to, because true Christians help their community instead of trying to divide it.
When these folks get down to it, when they look at the time and resources that they have at their disposal, do they really think that Jesus would have done the same?