Why does the Irish race speak English....? ( Archived) (73)

You can start here; Wikipedia.

Gaelic resurgence (1350–1500)
Additional causes of the Gaelic revival were political and personal grievances against the Hiberno-Normans, but especially impatience with procrastination and the very real horrors that successive famines had brought. Pushed away from the fertile areas, the Irish were forced into subsistence farming on marginal lands, which left them with no safety net during bad harvest years (such as 1271 and 1277) or in a year of famine (virtually the entire period of 1311–1319).

Outside the Pale, the Hiberno-Norman lords adopted the Irish language and customs, becoming known as the Old English, and in the words of a phrase coined in later historiography, became "more Irish than the Irish themselves." Over the following centuries they sided with the indigenous Irish in political and military conflicts with England and generally stayed Catholic after the Reformation. The authorities in the Pale grew so worried about the Gaelicisation of Ireland that, in 1367 at a parliament in Kilkenny, they passed special legislation (known as the Statutes of Kilkenny) banning those of English descent from speaking the Irish language, wearing Irish clothes or inter-marrying with the Irish. Since the government in Dublin had little real authority, however, the Statutes did not have much effect.

Throughout the 15th century, these trends proceeded apace and central government authority steadily diminished. The monarchy of England was itself thrown into turmoil during the last phase of the Hundred Years' War to 1453, and the Wars of the Roses (1460–85), and as a result, direct English involvement in Ireland was greatly reduced. Successive kings of England delegated their constitutional authority over the lordship to the powerful Fitzgerald earls of Kildare, who held the balance of power by means of military force and widespread alliances with lords and clans. This, in effect, made the English Crown even more remote to the realities of Irish politics. At the same time, local Gaelic and Gaelicised lords expanded their powers at the expense of the central government in Dublin, creating a policy quite alien to English ways and which was not fully overthrown until the successful conclusion of the Tudor conquest.

I am talking about 2000 years ago not now son

And the strange thing is that Irish people speak better English than most of the English.

dipstick I am talking about 2000 years ago when your dipstick country invaded my country and made the Irish speakers speak poxy English kk? why ?

That was around 900 years ago,Pedro.
Before that we were invaded by the Vikings & later the Norse.