Earlier quoted context omitted.
The Supreme Court definitely suffers from 'not invented here' syndrome. There are vastly superior Supreme Court systems that other countries have implemented (Austria is a great example) where the US could just copy their homework, but won't. The press really needs to start suffixing the justices with (R) and (D) when discussing them to drive the point home that the SC is the most partisan branch of government.
Austria's system was created in the mid 1700s and would have been relatively new at the time of the founding. Was Austria's system clearly vastly superior at the turn of the 19th century?
They have always done what the US should do: keep the votes on a judgment private, so opinions speak for the court as a whole, and they don't let the losers have a soapbox by publishing dissents.
As a cherry on top, they enforce a mandatory retirement age of 70.
These factors make their court an actually apolitical body in a way that's in hilariously stark contrat to the US court. The US court is what you'd make if your entire goal was to turn all its judgments into political theatre.
[1] https://en.wikipedia.org/wiki/Constitutional_Court_(Austria)