If you are referring to Carol C's comment about tea being thought effeminate in the States, yes, it is true, but it might have arisen from antipathy toward the Boston Brahmins (Cabots, Lodges, etc.) who were regarded as tea-drinking elite, rather than any reflection on the English.
McGrath, interesting point about the Irish. Many were still coming over from other parts of the British Isles as well and they also turned to coffee. The Russians and the Jews persisted in their love of tea, but perhaps those from the British Isles were more quickly absorbed. Many other immigrants- Germans, east Europeans, Scandinavians, Italians, were coffee drinkers. Need a social historian here.
I live at present in western Canada; some here joke about tea-drinkers, not sure why. Many Canadians here drink tea at breakfast but coffee the rest of the day. When visiting some one's home, coffee is usually offered; almost never is tea mentioned. At meetings, the coffee urn is king; sometimes teabags are put out, but they are seldom used.