Doing cost-benefit analysis of new technologies is a good idea. More often than not for the majority of people the answer is "obviously worth it", and that can give an impression of out-of-hand dismissal. I for one would take all the downsides you mentioned and then some over the Amish lifestyle and it's not even close.
I don't think the majority of people actually do a full cost-benefit analysis, in particularly with the way advertising works. And doubly so with screens and the way things have slowly changed to become more addicting. That also assumes that all the costs and benefits are well known.
That said, I'm not sure I would take the Amish lifestyle as well, but it's definitely a close choice and I think they live more intentionally and that's something to be preserved. There are quite a few tradeoffs I would take though -- dropping text messaging for phone calls, for one; changing the way our cities are lighted to decrease light pollution; and definitely decreasing noise pollution.
