Great Britain was Always the traditional national side of these islands ,rugby league will never amount to anything in Scotland or Ireland so it stands to reason GB should be the sole national team with the best players representing the team regardless of where they hail from in the islands ,Also gave RL a point of difference from Union and would have got a indirect boost from the Team GB hype around the Olympics!
Ireland has nothing whatsoever to do with Great Britain for a start...
Apart from being neighbours, that is. Before the creation of the current Ireland set-up they didn't have a national side!
And anyway, I thought you were afraid of British RL dying yesterday, whereas today you're seemingly wanting to withdraw the game from many parts of Britain (and Ireland!). Make your mind up.