That’s right and as I said, it is up to the State of Colorado to fix it. The feds have no constitutional say.
You don’t know what you’re talking about. The US Supreme Court is the final decision maker on ALL law. State and Federal. Common, statutory, administrative, constitutional. ALL LAW.
All that is required for the US Supreme Court to decide an issue of state law is for the state appeal process to be exhausted first. After that is concluded, an aggrieved party can petition the US Supreme Court for review.
If it accepts the case (i.e., grants petition for a writ of certiorari) it’s decision is final. That’s how it is. That’s how it’s always been.