Answer:
Because it is an export of Western culture.
Step-by-step explanation:
The democratic ideology that is reflected in the US Constitution is a product of Western culture. Its history can be traced back to European movements during the Enlightenment, as well as ancient Greece. However, it also has played a role in Westernization as an export of Western culture. This democratic ideology has been carried to many countries due to processes such as colonization, imperialism and globalization.