No State Law, however it is passed, has the slightest effect on the Federal Supreme Court.
Unfortunately, the legal arbiter of who has or does not have standing before the US Supreme Court is --- the U.S. Supreme Court; or possibly the U.S. Congress.
The state law, if drafted as I suggested, could give standing to people who will defend it properly to appear in federal court as parties in interest. The court can determine standing, but when the state law gives a substantive right to someone, that will provide them standing, just as a state law that gives the attorney general responsibility to pursue cases involving the state gives him standing.