But still serves as a good point.
Let's say you are part of a group that studies the Knight and how it is best utilized in chess. Your group, the National Knight Association, is a single issue group that focuses solely on how to best utilize that particular chess piece the most effectively during a game. Because of your specialization, you don't generally worry too much about the Pawns, Rooks, or Bishops, but being that those pieces are involved in the game, you do understand how they work.
If you think you can play an entire game of chess protecting your King with nothing more than the Knight, you'll lose to Gary Kasparov's arthritic cat.
Sometimes, if you want to win the game, you have to step outside of your 'single issue' and play with the pawns.
What good will gun rights do us if they outlaw property rights?