I think a much more likely way to remove the judges would be for the Congress to start considering the funding of the Ninth Circuit and whether or not it wants to split the circuit in two, as has been suggested in the past. The two judges might be allowed to know that the Congress will drop these matters, but only if they resign.
I don't think it is a good idea to have Congress play those kinds of games when decisions that may be odious come down....separation of powers or something. What the justices did may not be good or right, or it might be, but certainly seems within the right of the judicial branch.
Regarding the person who commented that we shouldn't have the phrase "Under God", our great country was founded "with a firm reliance on the protection of divine Providence". Should we edit this great document? Should we now take God out of our Constitution? Take Him off our money? We are "ONE NATION UNDER GOD" and we should stay that way.
In God we Trust ...
If however the Legislature ever does impeach a Federal Judge clearly due to distaste or disagreement with his rulings for a particular case or a group of related cases -- and I do think that in extreme cases that needs to be able to be done -- if then the Supreme Court says "No that may not be done, you may only impeach a Judge for high crimes and misdemeanors," and sets aside the Legislative impeachment and removal order, why then that would be an exciting day!
That, I hope, would bring us to our national senses regarding Marbury and its limitations. The Supreme Court can not be the sole final judge of Constitutionality. In this case it IS the Legislature's uncontestable authority to make that impeachment.
The Supremes can throw an unConstitutional law, the Legislature can throw out a crazy or outlaw Judge. Neither is easy to do, both are ponderous procedures.