Squoosh, it was in no sense an analogy. It was a demonstration of a continuum between stereotyping and outright discrimination. I do not personally see Oirish stereotyping, no matter who engages in it, as as benign as it confidently believes itself to be.
Nowhere did I say that there was an equivalence between the two situations. Though of course there's a long history of colonial literature written from both Irish and English perspectives which constructs precisely this Female Ireland/Male England paradigm, down to and including some of Seamus Heaney's poetry.
I can't comment in any depth on American attitudes because it's so long since I lived there, and it's bound up with expressions of Irish-Americanness, which has established 'types' of its own. I think that as a country with a very different attitude to immigration, and a very assimilative notion of Americanness, it's not like English attitudes, and in many ways, it's a deeply romantic stereotype. Irish ancestry is prized and celebrated, albeit often in stereotypical (alcoholic/pugilistic) ways. Hard to imagine David Cameron sinking a pint in Ballyporeen to celebrate his Irish ancestry.
Though I lived in Massachusetts for a year, and the continuing cultural imprint of the Kennedys alters things there a bit.
I will say, though, that there was one of a series of clips of recordings of interviews with Orson Welles on Radio 4 in the last week or so, in which he expressed at length his visceral hatred of Irish immigrants to the US. The interviewer kept gasping and saying 'You can't say that', but he he did. Obviously one man's prejudices are neither here nor there, but I don't think Radio 4 would have allowed equivalent airtime to such fulsome abuse of another ethnic group.