If the judge is allowed to outsource their job, can they outsource to anyone? What about to a donor who contributed to the campaign? what about to someone who has a vested interest in the outcome of the judgement?

If outsourcing is permitted, then why have judges in the first place? why not just have an AI and let it do all the work and save money for the govt?

A whole lot of logical leaps in your questions.

Yes, judges can (and have) "outsourced" writing court opinions. SCOTUS and lower courts have done this with law clerks since the earliest days.

Yes, they can allow interested parties to do so. You can argue they shouldn't, but that's a different issue from legality.

The next paragraph is just a wild leap.