At best, they enable the overreach. See the Lopez case, gun free school zones act. It struck the law, and described the congressional findings that, if in place, would allow the law. Voila, the gun free school zones act is currently in place, and has been found constitutional by federal courts.
I'll be surprised in SCOTUS takes another gun case in my lifetime. The District and Circuits will just keep chopping the RKBA down; as they did with the Presser case, more or less feeding the collective rights theory, even though the Presser case stands for the OPPOSITE of what the lower courts claimed.
When it comes to the RKBA, I consider the courts to be literally corrupt. They have earned my contempt. I give them resepct for the same reason I give the Mafia respect.
That is scary as hell, because it is spot on.