The purpose of the second amendment was to keep and regulate a well armed and organized militia that is able to defend the american people from an invading or occupying tyrannical government. 
That much is clear.
To be able to do that, the second amendment allows for the ownership of small arms that match the military. In 1776, that was muskets. Today, its semi-auto rifles (automaic if you're handy with a drill press or coathanger)
Now, with you being a dense retard brainwashed by the jewish ruling class, you're actively voting to disarm yourselves, leaving yourself wide open to tyranny. Urbanite dogs like you will be hung first, before the kikes and congress are killed, as a traitor is always killed before the enemy.