A 9th amendment argument exists here.
The Ninth Amendment to the United States Constitution is a key component of the Bill of Rights, designed to protect individual liberties not explicitly listed in the Constitution.
In simple terms, it means that just because a right isn’t specifically mentioned in the Constitution, doesn’t mean it doesn’t exist and should not be protected.
It was implied in the 2nd that the right to keep and bear arms existed for *all* citizens in *all* states. Infringing upon this right impedes the constitutional right of citizens to travel freely between the states.
Prior to the tragic boating accident, my collection of several functioning firearms had killed fewer people than Ted Kennedy’s Oldsmobile.
Ninth Amendment is irrelevant here. The Second Amendment is already very explicitly listed, and therefore does not fall under the purview on the Ninth.