Ukrainians and Irish are obviously too stupid to handle their own agriculture

There's a huge difference between the drought-induced famine in the wake of a horrible civil war and a systematic regime of mass starvation implemented by landlords against an ethnic underclass. The East European Plain Drought wasn't unique to Ukraine nor was it the product of Soviet policies. Countries as far removed as the UK were experiencing droughts and food shortages during the same years (1932 - 1935). These were the same years as the US Dust Bowl.

The Irish Potato Famine was most notable because the English were harvesting a bumper crop of grain at the time. Grain prices crashed while the Irish were starving and grain rotted by the ton in warehouses that the Irish were locked out of. The Irish Famine was fully manufactured by English economic policies.

It's not unlike the Bangladeshi famine following WW2, resulting from Churchill's explicit strategy of diverting the bumper crop from Australia away from a territory he wanted to punish for its independence movement. Curiously, the Bengal Famine of 1943 only ended when the US under FDR intervened with its own aid. In the 1950s, the USSR also began contributing enormous surplus food aid to the subcontinental region, cultivating a large and popular leftist community of Russia-friendly South Asia Communists as a result.

What we're seeing in the Middle East in the modern day - Israeli embargo of foodstuffs into the Palestinian Territories, US strategic bombing of Iranian agricultural transit and irrigation infrastructure - and in Latin America - the US energy embargo of Cuba, strategic strikes on major energy and water infrastructure in Venezuela - is similarly engineered to induce mass famine as a strategy of regime change.