The 2A is common sense. Gun control is not.
That depends. The Second Amendment makes sense in an irrational world. Gun control makes sense in a rational one.
Guess which one we live in. But beyond that the Second Amendment certainly helps prod people to behave rationally. It has a civilizing effect. Gun control means irrational people can feel quite confident in ignoring the boundaries of civilized behavior. So gun control only makes sense if humans always behave in a rational, civilized manner making worries about being victim of crime unnecessary.
Gun control is part of the Left’s vision of Utopia. And that vision is what makes the Left so dangerous.