Folks- lots of the above is true.
Everyone says they don’t want a hard border and almost everyone means it (personally believe the DUP would love one).
But not wanting one does not equate to not being landed with one. GB will wish to avoid potentially cheaper EU products entering its market once it eventually gets its own trade deals, and presumably won’t be keen on the potential EU migrants that could make their way to England entirely unchallenged.
The EU will definitely want to avoid all sorts of unregulated, poor quality goods entering its market via NI.
And a hard border means anything that curtails those activities- it does not just mean huge customs posts. But any physical infrastructure will be at risk of attack, it’s how it has always been, and will I suspect forever be.
But honestly those things, to me, born and raised on the border, are practical, physical problems and the issue runs much much deeper. As an Irish citizen I do not want to cross a border of any description within my own country (would you?!) And I don’t want to have my freedom to move therein curtailed because of a gerrymandered squiggle on a map. Families, homes, towns, livelihoods are literally split by this line and it matters not one iota, at the minute!
Brexiteers who want their ‘sovereignty’ from a ‘bunch of people in Europe that they didn’t elect - guess what? - that’s how lots of people in NI feel about Westminster. Your Labour and Tory parties don’t even stand for election here so we can’t ever hope to vote them out.
Those who say that there is no reference to the border in the GFA completely fail to see that the whole arrangement was predicated on our dual membership of The EU; it could not have succeeded otherwise. The seamless border was a given!
And those who say ‘oh but there’s peace now, there’s no appetite for going back...’ etc don’t seem to realise that the peace is contingent on what that GFA offers. Everyone had to compromise - Ireland gave up articles 2 and 3 of its constitution which was a massive compromise for nationalists, and a huge gamble for the Irish government which now has no choice but to protect those very same nationalists (and everyone else for that matter) in NI.
A hard border as a result of no deal will be blamed over here on the UK and the DUP; a hard border because of a bad deal (ie a deal without a backstop) will be blamed on the EU and Ireland.