The people ratified the BOR's. What "many of the founders" though is moot because the people spoke.
who considered everything it expressed explicitly to already be implicit in the Articles of the Constitution.
Implicit is for liberal adventurist jurists. Explicit is for conservative jurists. The people knew it then and I know it now. The powers that be have one overriding concern and that is consolidating their power and growing it. My hat's off to the people of the United States who understood that.
Beyond that, it's purpose was to impose limits on the power of the federal government, not expand it.
That's one view, it's not mine. I happen to believe when the people ratify an amendment that conserves their right to keep and bear arms, they meant just exactly that.
Then just what is it you think you're "conserving"?