Not so sure about that. From Jon1959's link, "Demographic changes favour a united Ireland. Support for reunification in Northern Ireland has been rising steadily since the Good Friday agreement was signed, while the proportion of people who describe themselves as unionists has gradually fallen. Younger voters are much more likely to support reunification: in 2022, 57% of 18 to 24-year-olds said that they would vote “yes” if a border poll were held immediately.
Catholics now outnumber Protestants. And in local elections last year, votes for pro-unification parties beat those for pro-union parties for the first time. Sinn Féin’s success in the 2022 election and O’Neill’s landmark ascent to the first minister post plainly reflect those changes. University of Liverpool politics professor Jon Tonge told the Guardian’s Rory Carroll last week: “I don’t think there ever will be a unionist first minister in Northern Ireland again. It’s over.”