Jim,
Arlene Foster has waked out of the The Irish Peace discussions,

The problem is that Sinn Fein demand legal recognition for the Irish language even though no-one speaks it in the North.
The DUP would be fine with that as long as there is also recognition for the majority culture, but Sinn Fein insists it must be Irish language alone or nothing.

None of which has anything to do with Brexit, so what was your point Jim?