Let’s say everyone in the world has a smartphone and charges it 100% every day. Let’s say that it’s 4000 mah battery so they waste 2000 mah. This is very very generous. That’s 7.4 wh per person per day X 8b people X 365 days a year = 2.1x10^13 wh. In 2022 we used 1.7x10^17. Or 0.01% Like I said, statistical dust.
At least this is about autoimmune diseases which aren’t contagious.