"Sepe-rat-ist blood" would't sound right, and "re-pub-lic-an blood" would be a bit of a struggle to fit in. Fuck all this double standards pish, if they can say fenian then we should be able to as well. That said, in the climate of anyone being arrested for anything that might potentially cause offense to someone somewhere - because hurting someone's feelings is the worst fucking crime it's possible to commit in this sorry age - any of the three might get you a tap on the shoulder, and that's just fucking daft.