The 2nd Amendment of the Constitution should be repealed.
"A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
The authors of this document were fervently against standing armies. So, a well-regulated militia was necessary for the security of the United States of America.
Now the United States of America has the largest and most well-armed standing military in the history of humanity with nearly a trillion dollars in annual spending.
Therefore, the 2nd Amendment is no longer necessary and should be repealed as soon as possible.
A new amendment, repealing the 2nd Amendment, should be put in place that matches the realities of the 21st Century. Time has changed the circumstances of our world and the Supreme Law of the United States of America should change with it.