As a free man, a citizen it is a non sequitor that I should be able to exercise my right to carry a firearms for my personal protection and the protection of my family.  Didn't Heller vs DC spell that out in a way that could be understood?

The parks are like anywhere else: there a people in them who do not have good intentions.  Why shouldn't I be able to protect myself against them?  You think they are unarmed?  Please!