A business owner is not obligated to support people, they are obligated to operate with the goal of maximizing profits. A business is for no other reason then to make money. It in turn supplies a product that if desired will sell well otherwise why make it. The obligation to people is when you need them to complete the work the business conducts. You treat them well, pay a fair wage, provide a safe environment. You dont hire simply because you feel bad for people. Automation done well makes a consistent product. I get what you are saying in general, why advocate for less work for people but thats not business minded. Where they are now in China, the middle class has grown to the size of the US population in total. Imagine everyone in the US being middle class. More and more as the money flows to China, they will find it more difficult to hire people that have not made it to their middle class and at some point be faced with the same dilemma we have. Who will work for less than a lot. India is next until their wealth builds to the point of other nations. We are moving to $15 or more per hour just to get a burger out the window. We need it to pay for housing. At $30 an hour you still need to live away from he coast to afford housing. Not pay for, afford.
Anyhow, I feel what you're saying. Why automate when you could put people to work and allow them to make a living. I wish it was the way but its just not how business works.