[quote DownNative]@YerWanIsGettinNotions, no, Unionists generally have no problem acknowledging the existence of the Republic of Ireland.
What they don't like is the use of the term "Ireland" for it when it's the name of the entire island. It does suggest a single country.
Likewise, Sinn Féin does not like "Ireland" being used for the south either, funnily enough! To them, "Ireland" should only be used for a united Ireland as a single country. They call the Republic "South of Ireland", "Southern Ireland" and "26 Counties".
That, ironically enough, is one if the few things the two actually agree on.[/quote]
I've never heard anyone from Sinn Féin calling Ireland Southern Ireland. The south, the 26 counties, the south of Ireland, yes. Southern Ireland, no.