We already have a SCOTUS that is influenced by the whims of politicians. There is no checks and balances anymore and there hasn't been for a long time. The supreme court, like the DOJ, is a disgrace and a joke. The proof is in the fact that they treat the constitution as if it were a "living document" meant to be reinterpreted to reflect the political side they represent instead of the intent under which it was written. The SCOTUS, like any justice who sits on the bench is supposed to be impartial, they are anything but that and allowing them to serve under a lifetime appointment just gives them the security they need to continue ruling based on their politics instead of our rights under the constitution.
And can you absolutely state that ALL the SCOTUS judges believe it is a "living" document?