not having some process baked into the Constitution to deal with bad actors in the judiciary was a gross oversight.
They can be impeached. That requires both houses of Congress to be on board with it though, and most people wanting a solution to that problem currently don’t want a solution that requires both houses of Congress or a supermajority of state legislatures to be on board because that’s not a kind of support they can get. the only other way to remove a justice from SCOTUS is one casket at a time.