I see no problem in the Supreme Court, the successor to the Law Lords, ruling on whether government actions comport with the constitution.
The Supreme Court didn't do that. They did the opposite.
As the Government's Brexiteer Attorney General Geoffrey Cox - a great candidate for future PM, in my opinion - told the Commons early this afternoon in his loud booming voice when he was really giving it two barrels to the Remainers- The Supreme Court didn't uphold the British Constitution, because the proroguing of parliament has long been a lawful right of British PMs. The Supreme Court actually slightly evolved English Common Law and the "unwritten" British constitution to make such proroguings illegal when they weren't before.
In other words, wealthy Remainers have gone to a court packed with wealthy and UNELECTED Remainers - in a country where we traditionally like courts to stay out of politics - to get that court to INVENT a new law which says this prorogation was illegal.
By the way, the High Court of England and Wales found Johnson's prorogation perfectly legal.
So what's going on here? Is one court packed with people who don't understand the law and wrongfully declared it legal (surely all courts should give the same verdict on a mater of law) or is one court corrupt and packed with people all on one side of the Brexit debate?
My guess is that it's the latter - and it's the Supreme Court.