Gun deaths have also plummeted, cut in half since the early 1990's, in fact.  All the while with at least another 100 million guns entering circulation.  You shouldn't ignore that fact, either.

The vehicle safety features likely are responsible for the decrease, no one argued against that.  But the number of vehicle deaths has only recently dropped to the level of gun deaths.  And gun deaths have been cut in half while not adding most any additional safety features to firearms.

Nothing was "cherry picked".  I'm not sure you're applying that phrase correctly.  In fact, I've been the one providing most of the facts we're discussing here.