Ironically, with the court taking the position that the words are simply informative of the purpose of the amendment, but not having any legal effect on it restricting the government, we can now conclude that the founding fathers were ill-informed when they wrote the amendment. As we now know that a well regulated militia is NOT necessary to the security of a free state. If they were necessary, all the states that don't have militias wouldn't be free.
Given the founding fathers will ill-informed on the necessity of the amendment, the entire amendment should be ignored, and not just the part that informs us of the purpose of the amendment.