> There has never been a famine caused by new technologies creating unemployment

That's a bold statement. And depending on how you define famine it might even be true-ish. But I'm quite certain most poor people in the 1920s would disagree with you.

Which is why we got the russian revolution and both world wards at that time. All 3 were partially caused by 19th century industralisation creating an poor, hungry underclass.