To reiterate the Chief's point: Because I Can - which means my Rights are superior to any other authority, regardless.
Argumentation and debate have no place in the conversation, that is itself just an attempt to undermine the Constitutional Right. My Right is absolute - inalienable - and it cannot be changed by law. It supercedes law. It exists regardless of who's learned dissertation and how they attempt to restrict it.
It exists as a Higher Authority than they. It cannot be limited unless thru my cooperation, and at the present time, if and when I choose to exercise it, the result won't be a discussion that I didn't have that Right, it would be whether it was appropriately exercised.
That's why I find it so revealing that gun owners seem to bend the knee and pull their forelock whenever judicial review of their actions might be necessary - and that they predominantly expouse the opinion you should restrict your exercise of your Right to prevent something Horrible! happening in your life. I guess they think that might be something even worse than death, dismemberment, or deliberate maiming. Gee, I could die painfully at the hands of a criminal, or suffer three meals a day, free, medical care, free, a supervised atmosphere of total control, like the military I served in, and a free lawyer, too.
I didn't ask to be put into the circumstance where I had to make a decision, but if it looks like me or the other person has to die, what do most people do? Shoot first. In the larger perspective of life, the persecution for doing so is largely to be considered acting in my self defense. As long as I don't show up at the other person's funeral, things will settle down.
I carry "Because I Can." I can only conclude that for others, it's just a permission slip and they can't accept that it has an overriding authority beyond their comprehension. I can vote, too, and if someone attempts to restrict one or the other, it's justifiable to defend it by exercising the appropriate Right. As that has already happened in America at Athens, Tennessee in 1946, there is precedent. Americans can and will go to the necessary means to protect both.
Because they can.