christ in christmas sign
I personally believe that some people are to easily offended but I can see Christians being upset if atheist hung their own sign which they do propose to do, the sign would read:
“At this season of the Winter Solstice, may reason prevail. There are no gods, no devils, no angels, no heaven or hell. There is only our natural world. Religion is but myth and superstition that hardens hearts and enslaves minds.”
Currently studying the supreme court in government class I feel one they would refuse to hear the case and two even if they did the banner would be allowed to remain, though it is in support of a specific religion and hangs in a public area there is equal opportunity for any religion to hang their own signs. I do however have to disagree with the Knights of Columbus because the banner does seem to directly take a shot at other religions and people not of the faith who celebrate the seasonal sensation most commonly referred to as Christmas. Had the banner read Merry Christmas or something along those lines I believe it would have been more appropriate.