Is this ironic? (question about most "Irish-Americans")?

Can you give a link? I am actually interested. But ACTUAL Irish people mainly came around in the 1820's and 1840's so that theory isn't too far fetched. But my ancestors are from Mayo and Galloway (probably spelled that wrong) And that IS NOT Scot-irish. I have done research into this as well. But it is because people mostly just hear they are irish and don't know whether they are actual irish, scot-irish, or even Anglo-irish (british that settled in ireland but their father and mother were from england). Because they don't know many of their ancestors. And scot-irish also discriminated against the normal irish more so than the other ethnicities (but they did as well don't get me wrong). But i would say out of the(of white people) who are irish here today about 5-7% of them are scot-irish descent. But scot irish are descendants of rich english and scottish tenant farmers so england did sort of cause it. (No offense)