I make my living due to technology, but if there was a big switch to throw that would turn off television/internet I'd do it without hesitation. I think the long term benefits would outweigh the short term chaos.
I've had similar thoughts, in similar terms. Put that switch in front of me and I'd toggle it with glee in my heart and a smile on my face.
A couple decades ago I was so optimistic about this stuff. In the big picture, it's done little but disappoint, since then. Same as many a great, grand idea—ruined by contact with economics and human "games".
Of course we are all suffering from mental illness and poor physical health and this that and the other thing all the time. All we do is stress out about what others think about ourselves and sit around lethargic. We didn't spend millions of years of mutation and selection to be the most optimal couch potato. We spent it to be a master forager of the environment, setting out on foot by morning for resources when the weather and light is good, and spending the day and evening in engineering or creative pursuits. I'm convinced even language had a role to play in changing our behavior dramatically in this way, since often what we do in life is limited to what we are able to communicate with words or thoughts in our language with its finite set of descriptors.