If you draw your knowledge from anti-Bitcoin media, then you can't come to different conclusions from the ones you presented. If I tell you that Bitcoin is not a problem in terms of mining, will you believe it to be true or will you still doubt it? You don't have to believe me, believe the official data which say that Bitcoin mining uses as much as 0.14% of the total world production, so this is about 220 TWh, while the loss of energy worldwide is as much as 50 000 TWh.
If research is to be believed, more than 50% of the energy used for BTC mining comes from renewable sources, so the problem you are talking about does not exist - it neither affects your health, nor will you remain in the dark because of Bitcoin. An interesting fact is that in about 8-10 years, 99% of all BTC will be mined, so I believe that the number of miners will be significantly reduced. I hope that everyone who is worried about this problem will understand by then what kind of nonsense they have made public.