"well-regulated" = well-trained
Even the "Liberals Guide to Doublespeak" doesn't list this synonym. But the real problem is you're the type that thinks a government issued tax receipt implies "well trained". Every 16 minutes someone dies in a road accident. By your logic, the sooner we start shooting drivers, the safer we'll be.
Can we please stop the ancestor worship of a bunch of wealthy, slave owning, Indian killing, treasonists? I'm pretty sure they were no different than the thugs we have today. Now, you can either amend the constitution, or you can dissolve the political bonds which tie us together. Or you can continue blabbering while other people do your killing for you.
Because after all, even the "well trained" police didn't need guns when they snuffed Eric Garner.