How about getting rid of the buffoons who completely undermine the legitimacy of the court? No? Okay. You keep going off Ketanji Brown Jackson. We love to see it.
As soon as they stop doing things worthy of criticism (and undo what they've already done), then I'll agree that the liberal justices should stop criticizing the court.
If anything highlights the fact that most of the justices are partisan hacks, it is acting like snowflakes over what ought to be the bare minimum of ethical guidelines. There are stricter rules in place for minimum wage jobs.