I am far more sanguine than you are.
When I think about what my grandmother, who was born in 1897 and died in 1993, lived through and saw change it boggles my mind. The shifts of the late industrial revolution and the totality of the 20th century are no more, or less, momentous and disruptive of the status quo than the changes I foresee from automation.
I am not trying to be a Pollyanna about this, as the disruptions will be huge and the transitions difficult, but I have no doubt that humanity can continue making it "through to the other side" as time and circumstances dictate. I think that far too many cannot even entertain the idea of a dystopian world, and will work to prevent it, that it will not come to pass. Also, societies where there are truly only haves and have nots, and nothing else, have always collapsed pretty quickly (relatively speaking). And now that there has existed, a worldwide, a middle class of massive proportions they're not just going to go away, quietly.
The world changed very rapidly as you stated with the Industrial Revolution and especially after WW2.
The advances were profound in everything from medicine to food production to rocketry and so much more.
I still see the problems of a "workerless society." The rampant unemployment, the strain on governments to provide services like health care to the populations (which are growing at an exponential rate) and the eventual collapse of society as we know despite opinions of a dystopian world.
One of the greatest challenges will be feeding the populace. Finding enough farmable land to grow food crops or graze animals.
Urban sprawl eats up land like never before. I've been in Adelaide for about 17 years now. When I first came here to my present location, there were sheep and cattle grazing on land all around me. Now that same land is either industrial or housing estates. Thousand of hectares of once prime farmland; gone.
I read a report a few years ago pertaining to Adelaide where they predicted Adelaide's population to go from (presently) 1.4 million to around 8 million within the next 50 years.
Other cities will be the same. New York for example has almost the population of Australia.
Tokyo has 1.5 x Australia's population. In 50 years time it will probably double.
Where will the food come from? Hungry people get angry. Angry people rebel against anything and everything.
Corporate greed will own everything and charge accordingly. If you cant pay you go without, like many of us are doing right now.
Goods and services are there for those well heeled enough to be able to enjoy them. For now.
There is always the chance that humanity will colonize other worlds too, such as Titan, which looks to be the most promising "after earth" so far that we can reach in the near future.
But this will all be started and largely controlled by machines initially and I still dont believe colonizing other worlds will help our home planet.