There is Intrastate commerce which is the most articulate example for me, in this case, of how to approach the question. We are the United States of America, the direct implication being that we are states with rights to self govern at the state level. The purpose of the federal government is to address issues on a larger scale that require coordination among the states such as national defense, highways, patents, trademarks and copyright licensing, for example. All of these activities require, as a matter of course, that states agree on how these activities will be governed, hence, we have a federal government. Certainly, I identify as American, but I am an American from the state of Georgia, which I will likely change at my earliest convenience as u don't like the way Georgia governs. I have a choice. The RIGHT to carry a weapon is determined at the national level by our agreed upon Constitution, agreed being the operative word. The rules under which each state executes the granting of that privilege are determined at the state level. Why would you want to passively forfeit the right to self govern, to self determine, for the privilege of carrying a weapon when and where you want? My desire for independence and absence of governmental intrusion in my life outweighs my desire to carry a weapon - or give you the right to carry a weapon in my home state. I could elaborate, but it's not necessary to make my point. This discussion further emphasizes the necessity of participation in our political system. The laws we have, at any and all levels, are determined by the political system - at both the state and federal levels. If you live on a state line, for instance, and feel it necessary to carry a weapon across the state line for some reason, let the forces that make you feel that way determine where you choose to live. But, don't take one more choice, that of self government, from me in the process.