It was never hard to understand. The UK was choosing to (& has) put itself outside the controlled gates of one of the (analogy) three biggest medieval "walled cities", with all the other "walled cities" still out there. Its people chose to end their (easier trading & moving across borders) EU club membership benefits. They chose to make entry to the EU much harder for their businesses & themselves, without (not in the UK's gift to) making it any *equally* compensating easier to enter anywhere else. Being poorer with fewer opportunities & less choice for more cost, was always Brexit guaranteed
We can’t blame ordinary British citizens for Brexit.
1. They were not told that 41% of UK exports and around 50% of imports still depend on the EU, and that creating barriers with your main trade partner has consequences.
2. They were not told that EU net migration would fall from a peak of around 322,000 in 2016 to negative levels after Brexit, while non-EU net migration would remain strongly positive, around 350,000 in 2025.
3. They were not told that Brexit would damage GDP, raise prices, reduce investment, weaken productivity and hurt employment — a conclusion now supported by major economic institutions and research bodies.
The responsibility lies with those who sold this project by misleading the public.
Brexit did not restore British sovereignty. It kept Britain dependent, but at a higher cost.