No serious lawyer would ever argue to a court that precedent is unreliable based on the partisan affiliation of the President who appointed the judge who wrote the opinion.
Very true. But even the opinion is from the Supreme Court and the majority were appointed by Republicans, they still claim the "offending" judges were lib appointed. For Rogers vs. Bellei, see a recent thread, post #166.
I'm glad that lived in your head rent free for so long that you could find it again! I was wanting to take that back up but looked at my massive posting que in despair of ever finding it. There was actually an Image file in that thread that I wanted to repost in another. You know, the one where the New York Times article mentions that the 14th Amendment doesn't apply to transient Aliens? I'm going to bookmark it now. :)
As for your point, Since Roosevelt, the entire barrel of potential judges has been contaminated. Republican Appointees have been often lousy, and only occasionally brilliant. Kennedy, Souter, O'conner, etc. were HORRIBLE. Don't you agree? :)