reading with comprehension helps. just because you don't believe it doesn't make it false.
Jefferson received a letter from a friend who owned merchant ships that were being attacked by pirates; he asked Jefferson if the Constitution allowed him to arm his ships with the latest naval cannon to which Jefferson replied, yes that 2A is to ensure citizens have access to the same weapons available to the military. As one of the writers of the Constitution, who attended the meetings and votes on the Constitution and its' ratification, I think he knows more about the meaning, purpose and intent than most people alive today, including you.
deal with it.