The recent Parker decision, has as usual brought out the opponents of the second amendment; those who would repeal it, or make it's repeal effective through the disingenuous twisting of language.
These people must be opposed, refuted, educated, and actively resisted at all turns, by all free men; as must all attempts to abrogate our essential rights and freedoms.
The second amendment has a very clear, and very important purpose:
All men by their essential nature have the right to defend themselves and their property from harm or oppression, be it by other individuals, or by the state; through whatever means necessary up to and including lethal force.
That right is fundamental to our nature as sentient persons. No law or amendment granted that right. No repeal or passage of any amendment may abrogate that right. No repeal or passage of any law may take away that right. No government or society may say that right is invalid, unnecessary, or “uncivilized”. That right is absolute.
The second amendment recognizes that right, and specifically limits the governments ability to attempt to infringe upon it.
Some may say that such a right is unnecessary, or outdated, or that the constitution and second amendment did not recognize and should not be construed as protecting that right.
They are wrong; by ignorance, by denial, or by design.
If you want proof you need not look far...
Sudan, Rwanda, Liberia, Yugoslavia, Cambodia, Congo, Germany, Armenia, Russia... The only thing that ensures against genocide, is an armed, and educated populace. The Warsaw ghetto should be all the example you ever need.
It is our duty as free men, and as citizens, to ensure that our populace remains both educated, and armed.