There are several reasons why some people criticize or dislike Margaret Thatcher:

Economic Policies: Thatcher implemented economic policies that aimed to reduce inflation, privatize or deregulate industries, and reduce the power of trade unions. These policies, known as Thatcherism, resulted in significant changes that benefited some but also caused upheaval and job losses in certain industries. Critics argue that the policies created inequality and weakened the social fabric of society.

Social Policies: Thatcher's government was perceived as being unsupportive towards marginalized groups, such as the working class, minorities, and the poor. The dismantling of welfare programs, coupled with the emphasis on individualism, led to accusations that she did not prioritize the needs of vulnerable communities.

Handling of Miners' Strike: Thatcher's handling of the miners' strike in 1984-1985 is often criticized. She introduced legislation that weakened the power of trade unions, leading to a highly contentious and violent confrontation with the striking miners. Many people felt that her actions were heavy-handed and showed a lack of empathy towards the working class.

Poll Tax: One of the most controversial policies under Thatcher's leadership was the introduction of the Community Charge, or "Poll Tax," which aimed to replace the existing system of local property taxes. The tax was not based on income levels and was seen as unfair and disproportionally affecting the poor.

Unpopularity in Certain Regions: Thatcher's policies were particularly unpopular in regions heavily dependent on industries like mining, manufacturing, and steel production, which saw significant job losses and economic decline. These areas often experienced long-lasting resentment toward her and her government.