Yeah that's fair. Perhaps my objection is really that the word 'famine' spanning both environmental and man-made food shortages can blur the issue generally.

Like, aside from a few relatively brief famines exacerbated by war, the Irish Famine is pretty much the first 'artifical' famine historically. It's not until the 20th Century that these become common

So you're right, but the term 'famine' definitely gets used to imply something natural and unavoidable, particularly in the 19th Century