Tech is part of a web of industries that provide to each other. What phones without the rare Earth metals a traditional combustion machine digs up?
As far as you or I go specifically, reality does not need either of us to actually exist. Plenty of folks still around without the two of us.
For numerous health metrics a slower pre-internet life was healthier. All the technological churn has had long lived impact on environment that will make life worse in the future.