That's the way judges are supposed to be, just not how it works in reality.

Problem is that the law itself is partisan, because it was dictated by the wealthy at gunpoint

In theory that's how it works already. In practice, there is currently no disadvantage to appointing partisan judges and no system in which to objectively measure partisanship of a candidate. What that means is that there will always be partisan parties appointing partisan judges and there will always be candidates who claimed to be neutral who will be either accused of or proven to be partisan anyway.

In the current system true neutrality on the bench does not exist