On your first point, I agree.
The Civil War definitively settled the question of secession from the American Union - which is to say: there is no unilateral right of States to secede from it and nor should there be when hundreds of thousands of Americans paid with their lives in a brutal civil war over that very issue.
As you say, the constitutional law of the U.S. does not seem to admit of secession, in contrast to European law which explicitly allows for this extraordinary process through the Article 50 clause of the Lisbon Treaty.
To that extent, any comparisons between the Californian and British situations are necessarily limited and a bit misleading. I do think it will fizzle out once the emotional fervour of this election and its fall-out pipes down. People are obviously still raw but that phase eventually peters out as normal life resumes.
As to your second point, the EU is not restraining Britain from seceding in any way, shape or form. It wants us to get on with the onerous task of leaving and deciding what kind of Brexit we want. The current wrangle in the high court and supreme court over the triggering of Article 50 is an internal constitutional matter within the UK, over the sovereignty of parliament. The problem is not the EU at all but the fact that a sizeable - and apparently growing - number of Brits don’t want to Leave now that the prospects for our future are looking increasingly bleak if we don’t retain full access to the Single Market.
In addition, the Brexit crisis has resulted in a deep and polarized split in the British populace that looks set to crystallize into a permanent - if highly regrettable - facet of our national life. The narrow referendum victory for the Leave side has only settled one matter: Britain will not remain a member of the EU as it has been hitherto since the early '70s. The manner of our leaving and the destination, so to speak - in terms of whether we wish to entirely cut ourselves off from the EU altogether, including the single market, with the concomitant impact being higher prices and job losses, or remain in the customs union like Norway while being outside the EU political/legal framework and its supranational government courtesy of some kind of EEA deal with Brussels that allows us to retain access to the single market for key industries.
Furthermore, while Article 50 will be triggered (unless Scotland is allowed to somehow block or delay it until we get the deal we desire), it is a reversible process - as its Scottish author made clear.
Pro-EU Britons are still convinced in the view that Britain is better off in the EU or at least as a member of the Single Market.That does not mean that we do not accept the narrow referendum victory for the Brexiteers - we absolutely do but we also accept that the UK can change its mind in the future regarding its relationship with our continental neighbour; whether to integrate further or not. This would only occur through the ballot box, i.e. by means of a Pro-EU party coming to power on a ticket of increased EU integration or a second referendum one day.
According to the latest statistical data:
**Brexit: Majority of UK now wants to stay in EU, poll finds
A majority of voters now want the UK to remain in the EU, a poll has suggested. **
**More Britons prioritise EU trade than immigration controls - poll
Britons who want the government to prioritise favourable trade deals with the European Union when negotiating Britain’s exit from the bloc outnumber those who think it should prioritise reducing immigration, a poll has found.
Britons voted by 52 to 48 percent in a June referendum to quit the 28-member bloc after a campaign in which those advocating a “leave” vote focused heavily on immigration and promised that ‘Brexit’ would make it easier to reduce it.
The government is expected to formally start two years of negotiations on the terms of Britain’s departure by the end of March. Its challenge is to secure as much access as possible to the EU’s single market while also restricting the freedom of movement from other EU countries that is one of the market’s main pillars.
In a poll of 2,000 people conducted online by ComRes on Oct. 12-13, 49 percent of respondents said the government should prioritise getting favourable trade deals, while 39 percent thought it should prioritise reducing immigration.
There is a stark age divide, with 48 percent of older people wanting immigration controls to be the priority, while only 25 percent of younger people felt that way, according to the poll for the Sunday Mirror and Independent on Sunday newspapers.
That reflects the results of the referendum itself, in which a much higher proportion of older than younger voters opted for Brexit.**
A lot of people are very unhappy with the delirious toll that Brexit is having - even before it has been officially triggered - and is set to have on our economy and standing in the world.
If folks consider through the ballot box at a later date that the Pro-EU side is right, what’s wrong with that?
It is up to the people through our parliamentary representatives.
Brexit is not a settled issue. It is the defining political split in modern day Britain and is likely to remain so for a very long time. Indeed, Brexit is a bit of a demographic time bomb - as the older generations due off, the overwhelming Europhile younger generations of the present will make up an ever larger segment of the voting population.