Of course. It should be of great concern to all people, Christian, Jewish, Muslim and atheists, because in the end it means that no sincerely held deep, life-shaping conviction can be expressed in the country that calls herself free.
Not unless it’s funded by the NEA and involves offending somebody’s sincerely held deep, life-shaping conviction. If they’d only get a giant bucket of p@#$ and put this cross into it somehow without tearing it down, it would make Mapplethorpe immortal, and they’d be fighting to keep it up. This is not Thomas Jefferson’s Bill of Rights.