In 1934, NFA took us from near-total RKBA freedom to most of the restrictions we have now in a very very short time. Prior, you could get a Tommygun mail-order; after, whole categories were banned for all practical purposes (with a tax some 4x the cost of the item) and intense licensing (loosely defined) as a model for others to follow. It may have taken decades/generations for the ripple effects to spread, but dropping that rock did not take long at all.
Your well-understood point amounts to attempting to un-ripple the pond, when the better & faster solution is to drop another rock in.
BTW: listen to BCR. He is...well-versed.
I do not dispute that. I have only disputed the celebrations over Heller.
The battles are engaged....it is not a time for celebration.