I well remember my "publik skul edumacation".
I wasted my youth attending several different schools, due to our family moving frequently.
The one thing they all seemed to have in common was the view that the second amendment was an obsolete collective right, that does not apply to common citizens.
Many schools simply passed over it, those that did not claimed it to be a "collective right", an "obsolete remnant", "meaningless" due to our "Living constitution", which is subject to "reinterpretation" to suit "modern conditions".
Every truly useful thing I know I learned AFTER I escaped the socialist indoctrination centers that masquerade as "School"!
Considering that I attended school in the mid 60's to early 70's, and that I am about the same age as many of those in politics and running government agencies today, it is no surprise that the second amendment is still under constant attack by the very people who have sworn to defend it (as it is an integral part of the Constitution and B.O.R.).
They have no problem with an abridged B.O.R., they learned that portions of it are irrelevant, from their "teachers".
The next time that someone brings up the "living constitution," ask them if they think that the Constitution is a legal document, like a contract or a bill of sale... You might need mention that the Constitution is considered to be the supreme law of the land, if they don't understand the concept of a legal document. Then, aks them if they'd ever sign a legal document whos meaning can be reinterpreted at the whim of people who are interpreting it.
Would they buy a house if they thought that after the closing, the terms, or even the amount the house sold for could possibly change?
The simple fact is if a legal document has a meaning that can change over time, then that legal document has NO meaning whatsoever.
Mark