Why did the Irish hate oliver cromwell in the 1650s?

The Irish harbored deep resentment towards Oliver Cromwell in the 1650s primarily due to his brutal military campaign during the English Civil War, aimed at subduing Irish resistance. His forces were responsible for significant atrocities, including the infamous massacres at Drogheda and Wexford, where thousands of Irish soldiers and civilians were killed. Additionally, Cromwell's policies led to widespread land confiscations from Irish Catholics, exacerbating social and economic hardships. This combination of violence and dispossession fueled long-lasting animosity towards him in Ireland.