This recent decision in DC saying there is right to carry is actually bigger news than you'd think. Why? Because up till now you did not have that right.
This decision asserts constitutional rights beyond what the Supreme Court has ever ruled. The Court said that the government cannot prevent you from having a gun in your home for protections. But that's it. Now this was a huge decision because, for the first time ever, the Court, in Heller and McDonald, ruled that the 2nd Amendment indeed does give an individual a right to bear arms.
This wasn't the intention of the Founding Fathers and has never been the case in US history, but what is good for the (liberal) goose is good for the (conservative) gander. I have no problem with the Court expanding our rights (or more correctly: limited the rights of the government). The 9th Amendment says this explicitly (though this Amendment, for reasons I do not understand, is rarely invoked in Court opinions).
Still, given those Supreme Court decision, the government could regulate ammo, the kinds of gun, and everything about guns in public. But even with those restrictions, Heller and McDonald were landmark cases that re-interpreted and expanded the 2nd Amendment. But all they said is that regulations could not prevent, again, you from having a handgun in your home for protection. That's it. But it was huge.
But now a lower court has said you, my fellow American, have a constitutional right to carry a gun in public. That is a huge expansion of the the core rights of the 2nd Amendment. We'll see if it stands.