"I'm not afraid of progressives or of firearms regulation." Well, maybe you should be. As to the "huge gun problem" in this country, I submit what we have is a huge violence problem in this country. Determine the causes of people turning violent, learn to spot the early signs and intervene successfully, and the gun, or any other instrument, becomes insignificant.
As to your Second Amendment interpretation, those with apparently more legal education and experience (SCOTUS) have disagreed. Also, your ability to read the minds of our long dead colonials is dubious at best.
Your position that there is no need for defense against a non-existent federal threat, makes it all the more likely to occur given that there are many who share your naivete.
As to the NRA being stupid, their success seems to contradict your position.