Partly Brexit, but partly our model of capitalism is broken. Our energy prices going wild means that local growers who rely on LED lighting out of season simply turned the lights off as there was no conceivable way of them producing economically.

That, in turn, is because despite the "subsidy" we have allowed our energy market to be designed around investors rather than consumers. Most of the continent has shielded consumers from the brunt of price rises: we haven't.

Really, it is just the brokenness of a British ruling class that prefers the success of the financial sector to a decent quality of life for citizens. It isn't caused by Brexit, Brexit is just a symptom.