This is fairly esoteric stuff. Not many readers are familiar with "the protocol" or what Johnson is planning to do.
From this side of the pond, we think of Ulster pretty much how Arabs think of Israel. Why does it even exist? Let the island be Ireland, period.
Its a relic of British mperialism.
Briefly -
Ireland has always been a catholic nation.
England imported a load of presbyterian scots to balance this out.
When the Republic got independence these protestants didnt want to be a part of it.
England then created Northern Ireland with a proddy majority to satisfy them.
They used their majority to discriminate against the catholic minority.
The IRA resumed its campaign in response to this.
Then 30 years of sectarian warfare which spread to th UK and Europe. and led to thousands of deaths.
This ended with the GFA which was a clever piece of negotiation.
It was a treaty between Britain and Eire which virtually squared the circle.
It meant that the people of Northern Ireland could be Irish or British and did away with borders between the two countries.
It was only possible because both countries were part of the EU so shared freedom of movement and so on.
Once the UK came out of the EU it meant that the GFA was overturned and there had to be a border between Ulste and the Republic.
This broke the GFA and was not welcomed by the catholics in the north, Their agreement was torn up without their consent.
So the governemnt decided to put the border in the Irish Sea as part of the protocol in the brexit treaty with the EU.
This prevented the border on the island and satisfied the catholics.
However it infuriated the protestants who see themselves as British and dont see why there should be a border between northern ireland and the UK.
It became more diffiult to trade between the UK and ireland and many companies gave up on it due to the excessive paperwork involved.
So now the government are going to rewrite the treaty with the EU unilaterallly.
They are going to rip up the border in the Irish Sea. This will please the protestants.
However it wont plese the EU who will impose a border on the Irish border.
This will piss off the catholics because, once again, the UK government is ripping up their treaty.
And there it sits. Both tribes in Northern Ireland have been shafted by the English government and in particular Johnson.
They had no business offering a vote on brexit until they had a solution to the Northern Ireland problem.
This is Johnsons mess and driven by his lies.