And all of this derives from ones initial starting point.
In 1979, the UK was recovering from a terrible decade, we had gone bankrupt (loans from IMF in 74, suffered years of Union-led disruption (rubbish piled up in streets for months). New York was in a similar position as you can see from films of the period, with less overt union action.
So successive Tory (UK republicans) governments had had their entire, democratically elected, mandates wrecked by unelected union leaders. You could see this as labour rectifiying biased institutions in favour of the working class, or you could see it as an attack on democracy. Neither would be "wrong". Thatcher saw it as latter and set out to destroy the power of the Unions. This also chimed with her personal views on self-reliance.
The goal she set out to achieve (to break unions "holding back business") she was mostly successful in. It was not a "wrong" goal.
The execution was at times brutal - the 1984 miners strike divided our nation and is still being felt. One can argue it was wrong to do it that way. But three previous tory governments had tried other ways and failed.
As for consequences, well, UK industry contracted terribly, the Big Bang lit a fuse under the London financial sector and ... Greece and Spain and Portugal and France and Italy did not break their unions power in the 80s or 90s. Now both the unions power and their economies are broken.
At certain scales, and at certain time scales, wrong is really hard - I think you need to start measuring wrong in body counts, not ideology.
miners strike: http://www.defendtherighttoprotest.org/wp-content/uploads/20...
PS - terrified how my 16 year old self would feel reading this - probably march against the idea of becoming old and right wing.