The left handed tax law could be passed and declared unconstitutional almost instantly under a challenge brought by any individual that referenced the equal protection clause of the 14th amendment, to any federal court. if the government appealed it at all, the appeals court would agree with the lower court, if the government appealed it again, the Supreme Court would also agree with the appeals court and lower court, and it would be a phenomenal waste of time.

That's the only validity of the example.

Nothing occurring in the court system matches the angst of people that view recent appointments and decisions to be invalid. Anything overturned only affected the day to day life because there was never an actual federal law passed at all. The courts are operating much closer to how people imagine them, than in prior times, despite people believing the opposite is occurring. Media.