There's a fairly good opinion piece in the Lahontan Valley News of Nevada.  The writer of this article has been popping up in some of my news searches lately.
You can always exercise your First Amendment right to argue against guns, but that should not include an attack upon the Second Amendment. That is the only way to be consistent if you contend the Constitution protects the right of privacy, the right to be free from searches without warrants (such as the current NSA telephone surveillance program), and a progressive interpretation of the First Amendment.

You may not like the fact that the Constitution allows Nazis or the Klan to march in our streets. You may not like it when someone burns the flag in protest of government policy. You may not like it when judges find that the right of people of the same sex to marry is protected by the Constitution. You may not like it that the Constitution allows conduct that runs contrary to your religious doctrine. You may not like it that the war on terrorists may be more difficult when the government must comply with constitutional protections. You may not like it when so many people use guns to wreck havoc in our neighborhoods and schools.

But, we can not fail to protect those freedoms others cherish, although we may find them offensive or trivial, and at the same time protect those freedoms we cherish. That is the price of freedom. Judges must never decide constitutionality based on what may be popular or trendy.
I do not agree with this comment:
At the same time, I would caution some gun advocates to seek a less abrasive and vitriolic manner (not that I always do) to articulate your concerns. People will listen, as I have done over the years, to reasoned and sound argument. Understand that liberals can be and should be your greatest allies. I trust your defense of the Constitution will not be limited to the defense of the Second Amendment.
We have been doing this for years.  We have found to our utter digust that many people actually will not listen to reason.  They continuously quote meaningless statistics and how they "feel" as opposed to actual facts.  If we are sometimes vitriolic, it is because we have exhausted ourselves trying to reason with the unreasonable, and have been reduced to simple statements of defiance that they can understand.