> Roe v Wade was overturned because it was obviously nonsense

that didn't stop it from holding for decades
the prolife movement worked for decades to turn the supreme court

it wasn't just some day the supreme court up and decided to reduce the amount of nonsense in the law, they were directly impacted by a very, very long campaign to appoint prolife friendly justices that paid off

> You can't say you have rule of law when the law itself is dependent on who is in power

Sure you can. The whole point of a democracy is that the law is going to change somewhat depending who is in power.