The causes of political instability, coups, and societal chaos are complex and multifaceted. They can result from a combination of factors, including:

Political Factors: Weak governance, corruption, power struggles, and lack of accountability in governments can create an environment ripe for instability.

Economic Factors: Economic inequality, high unemployment, inflation, and economic crises can fuel social unrest and dissatisfaction with the government.

Social Factors: Ethnic, religious, or cultural tensions can lead to conflicts, and the failure to address social grievances can contribute to instability.

Historical Factors: Historical conflicts, colonial legacies, and unresolved issues from the past can continue to affect stability.

External Factors: Intervention by foreign powers, resource competition, and geopolitical interests can exacerbate instability.

Communication and Media: Misinformation and disinformation spread through media can contribute to social polarization and unrest.

Global Trends: Global challenges like climate change, pandemics, and migration can strain societies and governments, leading to instability.

It's important to recognize that each case of instability is unique and shaped by its own combination of these factors. Addressing these issues often requires comprehensive, context-specific solutions, and there is no one-size-fits-all answer to preventing instability and coups worldwide.

It seems to me that the main reason is due to the presence of dictatorial regimes in power, and the spread of injustice and tyranny.