Your first point is correct, as things currently stand.Firearms ownership is a Constitutional Right- nobody can take it away from us.
It sounds like you're making a huge leap in assuming that our rights are given to us by the Constitution. They are not. Our rights are given to us by God. The Constitution merely recognizes, and supposedly protects our God-given rights.Your first point is correct, as things currently stand.
However, your second point is incorrect.
The Constitution can be amended pursuant to Article 5 to take away that right or, more likely, impose tighter regulations.
The US Constitution has been amended 27 times since 1789. The last amendment was ratified in 1992.
Some of the Amendments such as the abolition of slavery (13th, 1865) or the right to vote for women (19th, 1920) would have been anathema to the framers in 1789. They might have been wise men of their times, but the world has changed since then.
There was even an Amendment (18th, Prohibition of alcohol, 1919) which was repealed by a further Amendment (21st, 1933).
So, anything is possible. Understandably, this is very scary to the firearm industry. Hence their intense lobbying to defend their business, disguised as a fight for freedom and often based on scare campaigns, outright lies and distortion of the truth.
http://en.wikipedia.org/wiki/Second_Amendment_to_the_United_States_ConstitutionIn United States v. Cruikshank (1876), the Supreme Court of the United States ruled that, "The right to bear arms is not granted by the Constitution; neither is it in any manner dependent upon that instrument for its existence"