“The British” did not genetically engineer the potato blight.

Further, in the 19th century state capacity was small and massive modern style relief programmes were not possible. Despite this, Britain managed to spend a large degree of GDP on relief. Proportionately more than it did on covid response recently, for example.

The reason people deny british culpability for “genocide” is that there was no “genocide” and britain did what it was able to do, to an unprecedented degree in fact. If anything, we should be proud of britain’s response, especially knowing that it would never get aby kind of gratitude for it.