If all states have to recognize a fundamental right, then it shouldn't matter what fundamental right we are talking about. (I didn't read the link, but it can be only one argument.)
This thought did occur to me as this gay marriage case was developing. It would be a good idea to spread this concept as far and wide as possible. Most Americans, including probably the liberal justices on the court, are too stupid to have the foresight to have seen, or see now, this possibility.
To be honest though, the current court seems to lack the integrity to be consistent across the board.
This would be true if SCOTUS decisions were based on logic, like they used to be. Now, however, the liberal block and Justice Kenedy will rule the way they FEEL things should be - and guns make them feel all googly-woogly nervous inside. So NO GUNS FOR YOU!
SCOTUS is not bound by the laws of logic, justice, or common sense. The only thing this court cares about is what is the politically correct position and Americans having guns for protection is not that.