I think I got onto an irrelevant track by my first response to this where I talked about gun control being as American as the Constitution. I still believe that, but it is irrelevant to the point I made about the Catechism. So let me back up to this point again and offer the following response instead:
Your comment was a response to mine that said:
Now let's look at your response about this being a "narrow interpretation of the Catechism." You correctly point out that a people can decide, through their elected government, who is and who is not a legitimate authority. They can elect anyone they want Sheriff, for example. And if a people decides that they want all citizens to be Sheriffs, they can do that too. But the US did not do that. The 2nd amendment does not appoint all citizens as Sheriffs or anything like that. US law does make a distinction between elected or appointed authorities, and general citizens acting in their own interests. Therefore my "narrow" reading of the Catechism applies in this case. "Legitimate authority" refers to civil authorities. Can you find any authentic interpretation of the Catechism by a bishop or priest or doctor of the Church that says paragraph 2265 as applied to the US really means "legitimate authority" = "everybody?" If so, why was the term "legitimate authority" used instead of the more direct "all people?"The term "legitimate authority" is used frequently in the catechism, and it always means civil government. This interpretation in this case is confirmed by the additional term "common good," which appears in the previous sentence in the catechism. I am fairly certain that those who wrote the catechism were not sloppy in their choice of words, and that they mean what they say.