The Founding Fathers envisioned the judiciary as the weakest branch of government.
The legislature can remove areas of jurisdiction from the courts.
There are no defined reasons for removing a judge. There is no objection to simply removing a judge for having poor judgment.
Agree on parts a and b. BUT a judge can be impeached, just like any other official. (see Alcee Hastings) One can’t be removed because of the perception of “poor judgment,” unless the poor judgment is proven to be a result of being declared mentally incompetent.