“the constitution is clear”
Actually it is pretty clear that it does NOT provide for an individual right to own a firearm, only for a right to organize militias. The historical background is that in 1708, Queen Anne Stuart vetoed the Scottish Militia Act in order to prevent Scots from joining a rebellion in opposition to the Act of Union. Basically, the Second Amendment was about being able to overthrow the government. No less a figure than the late Chief Justice Warren Burger wrote that the idea that there was an individual right to own firearms was nonsense. Unfortunately far right extremists have taken over the Supeme Court and we pay for that with lives.