This isn't about rights. No one is questioning anyones rights.
It is about common sense. A 60 year tradition where families can walk through the park and enjoy various Christmas or Seasonal displays.
Wait - Wait, there is a display that goes against my atheist principles. I know. I will call my buddies. Next year we will get as many spots as we can and we will put our own messages up. We have rights. No one can stop us. Plus we will make all the newspapers. This War on Christmas stuff always gets good press.
I think in this instance the term 'dick' that was used as a descriptive, was apropos