I keep saying if they do that, the next Republican POTUS/Senate majority combo will do it, then followed by the next Rep/dem, etc. forever.
Just like the impeachment of Trump ensured the next time we have a dem POTUS/Republican House majority, said POTUS will be impeached because Blue Man Bad. And THAT cycle will now repeat until the dems get the dictatorship they so badly want and need.
If they can pack the Court, will there ever be another GOP President to re=pack it? I doubt it.