“there is no such thing as what the Supreme Court split should be….”
No shit. Never claimed there was. There is also no such thing on how legislative branches are split.
Super majorities just happen. Either by appointment or election. NY’s super majority government was election. The SCOTUS by appointment. One of those appointments never ever should have happened the way it did. A second of those appointments was rushed through in record time. Just remember those. Things usually come back to bite you in the ass.