https://en.m.wikipedia.org/wiki/Great_Famine_(Ireland)

Longer-term reasons for the massive impact of this particular famine included the system of absentee landlordism and single-crop dependence. Initial limited but constructive government actions to alleviate famine distress were ended by a new Whig administration in London, which pursued a laissez-faire economic doctrine, but also because some in power believed in divine providence or that the Irish lacked moral character, with aid only resuming to some degree later. Large amounts of food were exported from Ireland during the famine and the refusal of London to bar such exports, as had been done on previous occasions, was an immediate and continuing source of controversy, contributing to anti-British sentiment and the campaign for independence. Additionally, the famine indirectly resulted in tens of thousands of households being evicted, exacerbated by a provision forbidding access to workhouse aid while in possession of more than one-quarter acre of land.