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
A “boys club” scandal a couple years ago where the male higher-ups only hired women who would tolerate being sexually abused. Some ex-employees described it as “company culture” that propagated for a decade or more. There was an investigation after some women spoke out that led to a lawsuit, several top level managers being fired, and a couple CEOs being scrutinized really hard.
All of this is off the top of my head and maybe somewhat inaccurate, but that’s the gist of it.
Edit: Here’s an article for you