This is my stance, posted on another thread:
As the stepson of a miner of 37 years and great grandson of a miner who died in the Gresford Disaster (266 men and boys killed) I am yet to hear anyone from the NCB/NUM or mining industry prove to me that coal mining in the 70's & 80's was a profitable industry.
Power cuts and the 3 day week ruined this country and the cost was felt a decade later.
My stepdad never agreed with the strike, he knew the bigger pits would never have come out in sympathy when the smaller one's were being closed, but they had to when the roles were reversed.
Scargill did just as much damage as Mrs T supposedly did and he still continues to milk the NUM now.
http://www.theguardian.com/politics/2012/dec/21/arthur-scargill-battle-union-flat
To add to that, I was in basic training in HM Forces at the height of the strike and would send home £5 a week (no benefits paid to striking miners) from my £15 per week allowance.
To this day, I believe Mrs T did the right thing. My stepdad saw the writing on the wall. He bore her no ill will, he despised Scargill however.