I have heard that the Irish Potato Famine gets remembered because it was the last big famine, at least in the developed world. Before that, famine wasn't newsworthy.
People in the Irish Potato Famine mostly didn't die of starvation. They mostly died of disease, in part due to being in a weakened state.
One thing that contributed to disease: Desperate people would go to the beach and dig up clams or mussels or something and eat them raw because they didn't have the strength to also cut peat and wait for it to cook and raw seafood can be a source of germs.
There was an outmigration from Ireland and at least some of those people came to the US. Most European countries were hoarding food and Ireland was selling and that came back to bite them.
Irish land laws and land use patterns changed because of the famine. The smallest farms were the ones most heavily dependent on potatoes because it's an excellent staple. You can nearly live on potatoes alone, plus some B vitamins from somewhere like buttermilk.
So large, poor families with small farms grew only potatoes or mostly potatoes and those are the people who died or left for the most part. Land got consolidated in the aftermath. Those small farms stopped being a thing.
I personally think we need to promote stability by moving towards more local economic activity. We are too globalized and it's already hurting us with supply chain issues, among other things.