We're talking nullifcation here, and it only takes one juror, just one to nullify a jury. Sorry, but that only works when you have 12 people who are dilligently applying the law. As soon as you get one yahoo in who thinks that all gun laws are evil, all black men just go free, that Mexican can do no wrong, or any other such scenerio it all falls apart.
How diligently can the any law be applied, when the law itself on its face violates the Constitution, the Supreme Law of the Land? The right of the people to keep and bear arms shall not be infringed. That's the law, and the edict you are kowtowing to violates it.