I think they are just looking at her from a narrow - self-interested point of view. She was a great leader; a conviction politician and she made some hard decisions. They say if you're a popular politician you're not really doing your job properly. She certainly upset some people with her action but she had the best interests of Britain at heart.
People have mixed reaction to her death. The sufferer of her policy are naturally happy that she is no more and they think it to be a thing of past and those who loved her feel really sorry for her. Personally my feeling is one great iron lady is no more.
We not celebrating her death but remembering her accomplishments she made some important decisions her and Ronald Reagan were the two greatest leaders in congress and what we have today doesn't even come close