@BovaryX
You characterise libertarianism as being “small state, small taxes”. That’s a fair characterisation of right-libertarianism as it operates in the US and the UK, but not left-libertarianism or libertarianism as a whole. Libertarianism as a whole simply holds freedom to be the most important political value.
Furthermore, I didn’t say that the EU or any particular UK state was libertarian.
What I did say was that the politics in the UK have gone from a rather libertarian to a more authoritarian one round Brexit.
This is round talk of “taking back control” i.e. taking back authority to the British government judiciary. The key matter that ultimately obedience is due to the British state rather than the EU.
The talk has not been of reducing taxes but diverting them (e.g. from EU to NHS) and there is a pressing need to make some arms of UK state apparatus bigger not smaller (e.g. customs, trade negotiation) in order to navigate Brexit and afterwards.
The British state will, arguably, have a greater degree of de jure freedom (it’s not clear that this will translate to de facto freedom). It’s also not clear that individuals in the UK will have any greater freedom than before- they will just be obeying UK authority only rather than a mix of UK and EU.
I do think that there is a significant democratic deficit in the EU so it could be argued that people in the UK have a greater degree of control over the UK government than EU electors have over the EU, so they have more ability to influence government, and therefore they will be more free post Brexit.
But, with a FPTP system, usually only 40% of the British electorate are represented by the government, so it could just be a case of tyranny of the electoral majority (an actual minority) with no higher legal authority to enforce freedoms as enshrined in the rule of law.
Yes, there is a an avowedly free trade element to some Brexit messaging e.g. the ability to secure trade deals independently. But there has also been a lot of messaging that veers towards limiting freedoms rather than increasing them e.g. withdrawing from ECHR.
This shift to a more authoritarian position was key in breaking down the Red Wall. The traditional northern Labour heartlands tended toward being Left Authoritarian. And a a time when the Labour Party was not catering to that section of the electorate, finding commonality in the Authoritarian part became more important.