Didn’t real all these posts, but the potato famine killed over a million Irish....and it wasn’t because Ireland had no food, it’s because the English owned the land and exported all the food back to England and the indentured Irish were left to sustain themselves on mainly potatoes, which went belly up in a blight.
All the English had to do was leave resources there to feed them and chose not to, they legit didn’t try to even help. This whole “one nationality ruling over another and keeping them down” is one of the main reasons that white supremacists have latched on to the stories mentioned in the first post.
The other reason is the US then took like 2 million Irish immigrants in over the decade and they became the “illegal immigrants” of the day back then. If you watch Gangs of New York, its touching on this very topic.
The English and Americans tried to turn them into “apes” to try to group them together with black slaves and indentured servants.