I agree with some of what you say (as always Z) but I will always maintain that her sledgehammer which cracked the union nut so to speak,destroyed British Industry and left us a nation of waiters and chambermaids.If the whole coal industry hadnt been sacrificed on her altar in order to beat the lunatic Scargill,we wouldnt be paying ludicrous prices for imported coal for the new generation of coal powered power stations and held to ransome by all and sundry for our future energy needs.
I dont always agree with Hitchens but I greatly admire his independence of thought.Not an easy cross to bear in the U.K these days. 
You have to remember that it was only a short time after the miners strikes that new cheap coal supplies from the emerging European markets started to flood the UK. Polish coal, for example, was so cheap (even after transport) that our own output would never have been competitive. Additionally, it may be worth considering how many miners' lives have actually been saved, for the continuing production would no doubt have led to more deaths through underground accidents, emphysemia, and so on (and remember Aberfan?). OK, she didn't take on Scargill and the NUM for those reasons, but it is nevertheless a welcome legacy.
It was clear that the NUM and the unions in general were getting too big for their boots (remember Callaghan's tea meetings with the Union big bosses?).
The Unions were not, and never have been, democratic. They were rightly spawned when workers really were being exploited, but they couldn't adapt to the times and became a political menace. So, Mrs T took them on.
Oh, and you only need to look at the protests over Kingsnorth to realise that, even of we had all the cheap coal in the world, there would still be those that would try to stop us using it.
The future is nuclear. France knows it, Sweden knows it....we don't.