Thousands were left unemployed because of the Thatcher regime, that's a reputation the city has never been able to shake, even to this day. Liverpool was by no means alone in this, just look around the country. She is universally despised in what was the industrial heartlands of the country.
Yes the country and economy needed to adapt to the changing times but she did nothing to support people through those changes. Once thriving communities had the soul ripped out of them and honest working people were left on the scrapheap.