From what I can tell, the population of Ireland after the 1841 census was 8.2 million.

The population of England was then 13.6 million.

So, for each Irish person there was 1.7 English who were expected to feed the Irish and treat all their diseases, most of which were caused by overcrowding, overpopulation and poor sanitation. The English are not at fault here.

Almost all of the Irish who died between 1845 and 1855 died from disease, not hunger.

Official Irish census reports show 17 died of starvation in 1840 and about 6000 from starvation in 1847, the worst such year of that period.

Repeat: what were the English supposed to do?