To whatever extent that I agree or disagree with the Heller
decision, I have no argument with this:
The Amendment’s prefatory clause announces a purpose, but does not limit or expand the scope of the second part, the operative clause. The operative clause’s text and history demonstrate that it connotes an individual right to keep and bear arms.
The prefatory clause (or preamble) merely states a singular purpose, it in no way states the entire purpose (or any other reasons) for the amendment.
This is no different in using the prefatory clause of the Bill of Rights: That they are further restrictions and declaratory statements to restrict the Federal Government.
This seems to get lost in these arguments, however.