I'll tell you why it's stupid --- because the question is in and of itself irrelevant. The 2nd Amendment is still law, SUPREME LAW, just as much law as the 1st Amendment right to free speech and assembly, and the 4th Amendment right to privacy and freedom from illegal search and seizure, and the 5th Amendment right to due process of law and the right to refuse to testify against yourself and not have your land stolen by the state, and the 6th Amendment right to trial by jury when you're charged with a crime, and the 7th amendment right to a trial by jury in a civil case.
It seems to me that every time some wild-eyed reformist dogooders want to do something radical to give us more government and more restrictions here in the United States, they entertain themselves with the goddamnedest notions they can just unceremoniously do away with the Bill of Rights.
Who tf thinks the government has the right to preempt any of these basic constitutional rights?
Remember this: Pursuant to Article V of the Constitution 67% of Congress, and 75% of the states ratifying the said amendment, are required to amend the Constitution of the United States, and to you idiots out there who believe, along with a whole shitload of treasonous sonsabitches in Congress and state government with no respect for our constitutional guarantees, you're just gonna have to deal with it.