Mining is not bad, however like you said, it's power consuming which leading to illegal mining, and what's next? this happened: https://btcmanager.com/japanese-police-arrest-16-persons-for-illegally-mining-cryptocurrency/ . i don't it's a nice ending for anyone, but since you risk everything for it, it's debt you should pay, sincerely. but to mine the rest of bitcoin in the short future, these cases will be more, not less.