What's nonsense is our failure to invest properly in renewables, which would provide numerous jobs in research, manufacture, installation and repair creating tax revenues, especially in many coastal areas in decline which are suited to wind and tidal energy
Plus you'd have cleaner air and water reducing the number of people ill from that reducing pressure on the NHS.
Even when we had these industries we tended to import from other countries anyway because it was cheaper.
It's a travesty that we aren't close to having self-sustainable clean energy because we've been protecting fossil fuels and their shareholders.