It is time to go after these STUPID groups. Fight them at their own game. Start suing the crap out of them. Find out stuff. Where are they doing their business out of? Can we say ZONING ISSUES? How about their non-profit status...We need to fight fire with fire. THIS IS RIDICULOUS.
I think you can also have fun messing with them. How about everybody on their street gets a laminated poster-sized photo of the nativity scene in question to put in their front yard, while the lawsuit is proceeding? (There must be more fun ideas than that, but it’s what I could come up with, off the cuff.)