"England" is shorthand for 'The English Authorities' - by and large, the Irish tend to get on with English people (when they're not carrying bodhrans)
Enngland was invited to Ireland the way the US was invited into Vietnam by its puppet leaders
They overstayed their welcome by 8 centuries and even then they nicked the family silver when they left

Of course the Irish were treated like shit - go read up the Penal Laws - then try 'The Famine Plot' which more or less proved that the outcome of the Famine was deliberate

Sidney Clements (Lord Leitrim) even managed to re-establish the ancient right of Droit de seigneuriage (first bite of the cherry) when his tenants married

Our favourite kiddies author, the Rev. Charles Kingsley, pretty well summed up how the Irish were regarded by the British

"But I am haunted by the human chimpanzees I saw along that hundred miles of horrible country. I don’t believe they are our fault, I believe that there are not only more of them than of old, but that they are happier, better, more comfortably fed and lodged under our rule than they ever were. But to see white chimpanzees is dreadful; if they were black, one would not feel it so much, but their skins, except where tanned by exposure, are as white as ours."
And then we gave them Bernard Manning !
Jim