In your hypothetical, yes, the Supreme Court can do nothing to stop this law until one of the (many) people harmed by this law brings suit in federal court. Yo

In your hypothetical, yes, the Supreme Court can do nothing to stop this law until one of the (many) people harmed by this law brings suit in federal court. You're right, it is a bit awkward. And I'm sure we could debate the merits of whether such a system is a good thing as a matter of policy. But the "case or controversy" requirement is written in the Constitution, so it is probably here to stay.