Yes, they should.
They don't deserve to be in the EU.
They try to dominate all aspects of the EU, yet they are slavishly following the US as far as international policy is concerned. They are not very willing contributors to the EU finances.
Let them go back to nondecimal currency en nonmetric units.
Let them join the US instead. ...Aw, no, they may have to switch driving to the right.
BTW, they will continue to speak funny, as can be observed from Brits...