From the New England Historical Society: Over 50,000 men, women, and children of Irish descent were forcibly transported to British imperial colonies to serve as indentured labor. By 1790, there were 400,000 Americans of Irish birth or ancestry out of a population of 3.9 million.
Philip Welch and William Downing, both children, were kidnapped from Ireland in 1654, and sold to Samuel Symonds in Ipswich. After 7 years they refused to continue working on his farm and demanded their freedom. They were arrested and brought to trial.
Prejudice disguised as patriotism repeats itself in American politics. In 1854, the “Know Nothing” American Party formed in opposition to Irish immigration and carried local elections in Boston, Salem and other New England communities. The Know Nothings swept the state of Massachusetts in the fall 1854 elections but were defeated two years later.