Without absolutes, positive law can condemn an action that, next year, it mandates.
The "rule of law" under a positivist system is more of a whim than a rule - at the moment we are watching courts dismantle all cultural norms in real time.
A good absolute in any age would be that if you are convicted of raping children, your personal safety is forfeit.
The mileage of leftist judges and legislatures may vary.
I also see a good law in felons that have served their time as done with the government and all of their rights restored, including 2A rights.
/johnny