Re: "the opportunities created by Brexit".
It was a simple leave/remain choice, with no conditions attached.
That is just one of the many interpretations. Inasmuchas staying in the single market or customs union would also involve leaving the EU, they were and are equally valid.
This is why parliament sought and was granted by the Supreme Court permission to scrutinise the process and vote on any negotiated settlement, all the Daily Mail, et al. bluster notwithstanding.
Biting the hand that feeds IT
