The choice for the judge who believes a given law to be unethical is resignation, rather than simply ignoring the duly enacted, constitutional law and sabotaging established cases. (S)he has, after all, taken an oath to apply the law and has been given no-power to supplant them with a rule of his/her own. If (s)he feels strongly enough (s)he can go beyond mere-resignation and lead a political campaign to change the law, and if that fails, lead a revolution. But rewrite the law itself, (s)he cannot do.
• High Court Justice Antonin Scalia
cf. stare decisis (relying on previous decisions) . res judicata (‘it has already been decided’) e.g. precedent