Most Americans don't realize that, at least until recently, you could buy a kilo of C4 with cash, no questions asked. It is outside the experience of most Americans to buy high explosives retail, but that's actually a thing depending on where you live.
Yes, the courts generally lag public opinion, but eventually side with it. Whether regarding interracial marriage, birth control, gun control, and many other things. If anything, Roe was an outlier because in 1972 the public was probably mostly unconcerned about abortion and, if pressed, probably not broadly for it to be legal.
If, indeed, more than half the States were to legalize civilian possession of heavy weapons, then the courts might rule that to be covered by the second amendment. And since none do, the court will feel safe ending the second amendment's shade at small-caliber firearms.
One might wish for the courts to act very differently than this, but then we'd probably see large majorities in favor of reforming them to be as they are.
It's a problem, though, that we have such disparities in public opinion between various States.
By the way, this decision may well cause the end of Republican rule in many Republican States if their legislatures get too excited about banning more abortion options than the people of those States want them to. It might well usher a multi-decadal Democrat majority in the State legislatures and in the Federal government. It could very well be a Pyrrhic victory for pro-life activists.
>> "A well regulated Militia, being necessary to the security of a free State, the right of the people to keep and bear Arms, shall not be infringed."
So anyone, including children, the insane, felons etc has a right to bear "arms". And there is no clear limit to say that a gun is "arms" but a kilo of C4 or a ground-air missile launcher or a fully armed attack helicopter is not. In fact, in 2022 any militia that could be even slightly useful will need at least some air support. Yet SCOTUS has routinely banned these items from personal procession.
I say this not because I am some crazy gun nut or I think that those an actual right to bear arms would be a good idea.
I say it to point out that the courts job was always to rule what people wanted and what was practical was also legal. Just like a politicians job is.
Actually arguing actual constitutionality is a red herring. A lawyer's job is to find a loophole and all judges start as lawyers...