They don’t even have to use unconventional routes to remove judges from the SCOTUS, all they have to do is impeach. ‘But, they don’t have the numbers in the Senate!’, once a few congressmen fall out windows, everyone else will rubber stamp whatever else the GOP wants, to include impeaching leftist judges and expelling leftist congressmen who don’t fall in line.
Total control, they can impeach every democratic judge and expel any and every democratic congressman/woman if they don’t play ball. And you still have the appearance of following the constitution.