it's all of that, to be sure. But the acid test will be when this policy overturns the flagrantly anti-Second Amendment laws we have in states like California, whose state justice department operates under the concept that the Federal government can pass no law that takes precedent over the states.
That sure wasn't the case when Eisenhower sent the 101st Airborne Division to enforce school desegregation in Arkansas in 1954. Guess then, the U. S. Constitution took precedent. Guess now it doesn't.