Some of my goals being politically active have to do with my beliefs that people should have the right to defend themselves. It isn't to say that the government shouldn't also have that role. But people can't always rely entirely on government to keep them safe, or otherwise bad things would never happen.
When someone attempts to do evil to the innocent and defenseless, and they see a sign that says "Gun Free Zone" they know it will be easy targets. When they see signs warning them over danger that will occur to them, they know they would be ineffective.
Many people think the Second Amendment alone is all they need to fight for in the United States of America. But they also need to defend Stand your ground and Castle Doctrine.