Why can't the Irish admit what they did?

Rating: Null/10 (25 November 2006)

Q1. Why can't the Irish admit that they wiped out the earlier inhabitants of Ireland whom they call the "Pritani" (i.e British) and usurped most of their culture? The Irish are mainly "Gaels" who invaded the British Isles from "Galicia" about the same time as the English, i.e as the Roman empire broke up; and also Danes who raided and then invaded later in the Dark Ages ( and founded Dublin; Cork; Belfast etc as bases for their slaving and pillaging raids).
The Irish were the greatest slave kidnappers and traders in Western Europe for almost a millennium(the most famous "Irishman", St Patrick, was a British slave). One of the names for the Irish in Welsh (i.e British) means "slaver".
After conquering Ireland and dealing with the Danes the Gaels then invaded Scotland; conquered the native British and then turned north and conquered the Picts; and then turned south to invade what is now England, but met and were eventually defeated by the English, but not before they sacked the great center of Roman culture and second city, York, and raped and pillaged across most of the Midlands and North.
There is little left of the pre-Gaelic people in Ireland or Scotland except for place names (Aber; Insh') and their culture was usurped as Irish (Brasil; Tristan/Isolde; Mabinogian myths) Q2. Why did the President of the Ireland walk several blocks to the German Embassy to personally sign condolences on the death of Hitler? Although born in the US he did not do the same a few weeks earlier when Rossevelt died.
Why did Ireland make constant strong diplomatic objections and political lobbying during WW11 to the US about US planes and ships which strayed into Irish air/sea space or which were forced to land? The Irish were pro-Nazi not just anti-English; why else did they refuse to help the Americans? I am not English; I am of Irish Catholic origin; just believe in balance and fair play.
Paul Connolly