What we need is a way to link policy with its desired effects. Call it evidence-based lawmaking if you like. If you make a new policy, that policy should have a falsifiable goal embedded into itself. If that policy doesn't achieve its own goal, it is overturned - no courts, no appeals, etc., it simply winks out of existence.

Doing this would require creating new institutions with size and scope equal to current justice systems, albeit with different, if related, goals. It may be worth the work, though.