Be or nuts to be, now what

...mmm, they, the Britons, had been warned of the consequences of the Brexits; they, the Britons, were warned not to take such a course; they the Britons claimed the wanted their independent off from the EU. Now that they, the UK got what they wanted, now they want to be still part of the European Union. What on Earth they Want? Be or not to be?

                                             You most got it wrong, now what.