Grownups are supposed to know that the world is not a black and white place. The freedoms our Constitution guarantees are not absolute--they all have limits that are dictated by common sense.
The example that best illustrates this to me is the guarantee of freedom of speech, granted by the First Amendment. The cliche that applies is that you are not allowed to yell "Fire!" in a crowded theater, if there is no fire. You are also liable to punishment for slander and libel.
It is long past time for Second Amendment absolutists to realize that common sense shows that an unlimited right to own all firearms is responsible for a death toll that is worse than a compromise on certain weapons, background checks, and responsible licensing.
It is time for our absolutist politicians to grow up and face reality.