It sounds like sour grapes. London contributes nearly a third of the UKs tax income. It has a higher population than the whole of Scotland.
Not to mention that over ground wires are manifestly better in every dimension except for aesthetics.
This is a great example:
>contributes nearly a third of the UKs tax income.
Because it contains all of the financial services business that screw money out of all of the real businesses in the rest of the UK.