The Supreme Court is supposed to rule on the basis of the Constitution and the Law.
That is not something that is supposed to be partisan.
Make it Partisan, make it another branch of special interest demagoguery, and the Grand Experiment is over.
Our Government will only exist to protect promote special interests at the expense of the rest of the Country, at that point not protecting the Rights of all, but only promoting privilege for a select few.
It will have lost the Consent of the Governed, and become illegitimate, having no just powers without that consent.