The question concerning stop and frisk should not be a 2nd amendment issue. It's clearly a fourth amendment issue.
Let's look at the fourth amendment:
The right of the people to be secure in their persons, houses, papers, and effects, against unreasonable searches and seizures, shall not be violated, and no Warrants shall issue, but upon probable cause, supported by Oath or affirmation, and particularly describing the place to be searched, and the persons or things to be seized.
Now, I know that the gun lovers can quote the 2nd (but they usually fail to remember the opening clause). If the 2nd is worth the chaos of gun violence and should be jealously defended so such chaos can continue unabated, why is the 4th so easily dismissed?