Luddites believe that the essence of humanity is slowly being lost because of technology.

Mankind evolved for a different time- during most of human evolution we were hunter gatherers, and we grew to depend on that lifestyle for our mental health. That lifestyle provides lots of socialization and lots of exercise. We adapted to living in nature.
We still have stress, but it's different.
We weren't made for what we are now.
The name of this belief name from Nedd Ludd, who tried to start a peasant revolt in England in the 19th Century by burning down factories. He was eventually hanged.