In addition to the point raised by another reply, here's a thought exercise: who can stand fit to judge someone who has made defamatory remarks about everyone?

In addition to the point raised by another reply, here's a thought exercise: who can stand fit to judge someone who has made defamatory remarks about everyone? Is the way out of a case to simply say something negative about every possible judge? (No.) My understanding is that judges, particularly at the higher levels, are assumed to be capable of remaining impartial unless there is a specific conflict of interest. Specific, like "I was involved in this case as a judge at the circuit level" or "I was an investor in this company" etc.