Apparently Burnham wrote a letter to ministers, in which he said this:
I am clear in my conviction that the Brexit deal negotiated by the Conservative government was not good enough for Britain… It has led to a decade of low growth, burdened businesses with more red tape and weakened our ability to control immigration. It is a harder Brexit than was promised at the EU referendum.
…we will need to consider the UK’s long-term relationship with the EU as part of our 10-year plan. I will set out the next steps for this process around the [UK-EU] summit.
Hopefully that summit brings some good news (i.e. closer relations between the UK and EU).
You could argue it’s a deal that some Brits voted for, but definitely not all Brits of course.
Only 51.89% of those who voted in the Brexit referendum in 2016 voted for Brexit.
In 2019 there was a general election, and during that election campaign, Boris Johnson promised to “get Brexit done”, but only 43.6% of voters in that election voted for Johnson’s party, the Conservatives. So a majority of voters in that election voted against the Conservatives.
It would have been possible to leave the EU while staying in the single market and/or customs union, but the Conservatives chose a particularly hard version of Brexit, cutting more ties than necessary with the EU.