An England riven by a restive Islamic population can only be good for Ireland.
As I was taught growing up, "England's misfortune is Ireland's opportunity."
I’ve heard that line in primary and secondary school over in Ireland too. There is a missing dimension there, where the Irish upper classes did enough oppressing of their own people. Do some research in regards to the history surrounding Dermot MacMurrough and his relationship with Henry II of Englandas well as the relationship of Henry II with Pope Alexander III, who granted that king lordship of Ireland in 1172. Countries do not maintain a long-lasting united (and for the most part, mutually-beneficial) relationship via constant oppressionthere was more amiability than you seem to have heard of.
The 1916 Rising had a lot of communists involved, too; even Lenin regarded that as the first communistic (albeit failed) revolution, and took it as an inspiration for his own Bolshevik revolution.