The positive viewpoint is basically like the Industrial Revolution or the post-WWII consumer/convenience boom.

If productivity can increase significantly per worker, the result will be major overall economic growth.

It might be sold to consumers the way vacuums and washing machines were. With these automated modern conveniences you'll spend less time working and have more time for leisure.

Of course the reality for the actual workers on the line is that their job and industry may be disrupted and the overall benefits of that economic growth may not reach them during their lifetime. The Industrial Revolution was followed by a century of major and sometimes violent disputes over the relationship between corporations and labor and the rights of workers.

The post-WWII promises of convenience and leisure were replaced by the reality of the baseline adjusting and households needing to work the same or even more combined hours to make ends meet.

Even if the optimistic levels of economic growth occur, the benefits are unlikely to be evenly distributed.