She doesn't seem to think much of them. "Oh yeah, well how would YOU like being forced into a synagogue to vote?" It's as if she just KNOWS that a Christian would as negatively as she would. It's presumptuous and snide.
My aunt and uncle and I always voted in an elemenarty school cafeteria near where we live (and they never bothered to take down the children's drawings and deorations, or activity sign-up sheets, or anything of the kind either. School and lunch were going to resume the following day). The population in our neighborhood grew to the point where my aunt and uncle were assigned a new polling place, in the basement of a nearby Lutheran church.
I just don't see the personal or religious material as a big deal. You don't have to take a pamphlet out of the rack and read it, unless you're interested, and religious images just come with the territory in a CHURCH BUILDING. Their mere presence does not equal prosletyzing. Doesn't bother me a bit if it's someone else's religion.
The nearest mosque is thirteen blocks away, so I will never have to vote there, but in the event they ever offer their space for elections, it will probably not be in the place of worship itself (that's needed for prayer all through the day, I believe), it would be at the little urban madrassa they're building next door. Which would make it the same experience as voting in any other public or private school setting. Not a problem.
You don't vote IN any church anyway, it's always some meeting room or other on church premises.