One constantly heard about how badly theists were treated in UU congregations. These days, you really don't hear about it as much any more. I'm a theist, of a sort, and a political moderate, of a sort, and my politics are offended far more often than my faith is.
I don't think I'm alone. Indeed, even at the time, I liked to figure out which churches the complaining theists were attending and I often found that the churches were having theist-friendly sermons and adult ed classes. One time a woman complained that her church had denied her the right to throw a Christmas pageant because they hated Christianity and theists. When she had left the church and was still complaining about it a year later, I checked back. The following year they did have a Christmas pageant. I'm fairly certain that while there are some very humanist churches where theists would feel less comfortable, there are an equal amount or greater number of theistic churches where atheists feel less comfortable and the majority are in the middle where neither theists nor humanists get exactly what they want but neither is completely overshadowed either. My church has been 50/50 for a long time and my understanding is that it's pretty common for a church to be something close to that.
Anyway, back when I was constantly having this conversation, I would sometimes link to something like this and point out that it still sucks in many ways to be an atheist in America, so if atheists are a little snotty sometimes it return, that's probably not the end of the world.
Out of habit, I'm doing it again. Giving potential adoptive parents this much grief just because they are atheists? REALLY New Jersey?
CLARIFICATION: As Tom noted in the comments, this story is actually a few decades old, something I didn't notice and the person who sent the story to me didn't notice either I'm guessing. Joel also notes that this stuff is still happening to Pagans.