Liberals idpolers BTFO, perhaps. But this is really good for the Actual Left in an accelerationist sense. Once upon a time for a few decades after the Great Depression the ruling class knew how to be surreptitious in their domination of the masses and in doing so maintain an unquestionable liberal order. Kavanaugh is one of the biggest corporate cocksuckers the supreme court has ever scene. He literally breaths CEO jizz on a daily basis, in fact if one didn't know any better they might think he was a corporation himself.
It's these kinds of power plays that will eventually alienate people from the state that rules over them to such a degree that we will finally reach a snapping point and open revolution will occur. A supreme court that does anything but enforce the law written by legislators is not a legitimate institution. Enjoy it while it lasts, the next financial crisis is around the corner.