I would say that this article is EXACTLY what you are looking for if you want understand why people hated this cancerous polyp on the anus of Britain. See the quotations taken from this report below:
'... as heavy industry closed...'
'... a more divided society and the destruction of traditional working-class communities...'
'...squeezing inflation and clamping down on public spending and borrowing - led to a far worse downturn...'
'...England's inner cities saw riots in 1981...'
'...more turmoil - including one of the longest and most bitter industrial disputes in British history...'
'...selling off nationally owned monopolies...'
This is certainly not an exhaustive list. Indeed, it is the poisonous tip on the proverbial iceberg. Less reliance of forums and more study of the history of your own country's politics may reveal more reasons why many of the more sensible posters on here will be losing no sleep as a result of the demise of such an odious, contemptible **** as Thatcher.