From The Truth About Guns:

The Court has made clear that it is not the least bit interested in being the founding document’s guardian. It’s not even interested in resolving differing interpretations of the Constitution with major splits among the Circuit Courts when it comes to the right to keep and bear arms.

Instead of doing the hard work that it is tasked to do, the Court has decided to play in a popularity contest. While the Court grants only a small percentage of writs of certiorari (approximately 3%), Second Amendment challenges cry out for clarification and easily meet the criteria for the Court’s review.