you are emphatically wrong about the irish famine ohhhmygawd.

Ireland was brought into the UK and were almost immediately subjected to renting (capitalist) landlords who mostly lived in England. they were kept in poverty and forced to be reliant on the potato as primary nourishment because the potato was the only fully-nutritious crop that was worth growing on their tiny parcels of alloted land, while the rest of the food they produced was sold out of country (by capitalists).

the British forced the Irish to be reliant on one staple crop, and when the blight happened it kicked the final leg out of the stool. to narrow this down to “an exegenous factor” is incredibly misinformed and ignorant in the face of disgusting colonialist practice.