My point is that there is zero chance of this unpopular legislation being repealed once the EU have forced it through.

I would rather take my chances in a sovereign parliamentary democracy. I know the UK has draconian anti privacy laws on the statute books and have retained a lot of EU rules by default. But we still cling to the belief that parliaments cannot bind the hands of future parliaments, and we expect manifestos to be published and debated prior to elections. A lot of this has been pushed to the background while the UK has been governed by incompetent untrustworthy technocrats cut from the same cloth as the Eurocrats they yearn to be, but a political tsunami is on the way. You can feel it. The globalist establishment will rage against it as ghastly Populism, but I see it as a renaissance of Democracy. It gives me hope that unpopular laws can be amended or repealed.