No massive unemployment? The Great Depression lasted quite a while! And we only got out of it by after a decade of building up the next job sector of things for people to work in (see three sector model in economics)
Compare pictures of farms before and after automation and count the number of farmhands. Before automation, 20% of American jobs were farm-related!
Read Grapes of Wrath and other books by John Steinbeck… you won’t say there was no unemployment after that.
The Great Depression was largely caused by loss of farm jobs. As the farmhands migrated to the cities it took a decade to build up the manufacturing centers to give them all jobs. In the meantime, one third of the banks failed and the money supply they issued. The Fed didn’t bail them out and we got a depression.
Oh, and the hugely increased productivity led farmers to be engaged in a race to the bottom, trying to make up for falling prices with ever-larger harvests. The land became depleted and this led to the Dust Bowl as it simply blew away in dust storms.
Capitalism does this around the world. TODAY, one third of arable farmland has undergone desertification, likely due to similar economic factors.
This is wayyy more pressing than global warming:
https://amp.theguardian.com/environment/2017/sep/12/third-of...
> How are the wealthy supposed to get that way and stay that way with no consumers?
The wealthy can get that way without needing to pay much to human PRODUCERS. That’s the point.
If the only way an average person can get money and be a consumer is to sell their labor, then they will get less purchasing power over time. Yes things might get cheaper due to technology, but not everything (eg rent) and also the money supply could be inflated so prices could also rise due to that. The government COULD be giving all that money to people as a UBI but it usually exacerbates inequality by propping up stock markets etc.
Also, if wealthy people control all the resources and infrastructure then they can easily extract rents from all kinds of ecosystems. But even if the people on the ground barely have any money, the wealthy can just pay corporations for their own needs (eg robots doing their work). The owners of the corporations are wealthy and they cover the cost of robots.
We already see this in rising inequality … the wealthy didn’t need the poor to consume their products. Many of them could just have the middle class and wealthy consume them. (Look up Plutocracy.)
Having said that… if the automation could be made accessible to all, then everyone would be increasingly a consumer of products made by robots. Tax the robots, and give the money to the people unconditionally, so they can consume more.