Main parties worried about Sinn Féin threat

Both parties are happy to waste countless millions every four years to prove that the other is incompetent to govern. Both of them are right and they understand very well that we must not be allowed to find another party or parties who could actually run Ireland properly.
Could SF? Nobody knows, but FF/FG obviously can’t so it must be a terrible worry for the TDs that they might have to find some honest work.