Yeah but the Western democracies are successful because of colonization and exploitation, not because of our system of government. Sure, the American model has been good for SOME Americans but it has caused untold levels of misery across the rest of the world. A more relevant comparison is between countries in the global south that have had socialist governments and those that have tried to adopt liberal democracies. In almost every instance, these "democratic" governments devolve into corruption, crime, ethnic conflict, and general public misery, with most of the "development" really just allowing Western firms to come in and strip mine the country of its natural resources while completely ignoring the needs of the people. In 1950, democratic India had a larger economy than communist China, today China is poised to become the world's largest economy and its people are largely content with their lives despite the lack of personal freedoms, whereas India's continued stagnation has brought a repressive ethno-nationalist regime to power that has only succeeded in making life there even worse. Or look at Vietnam, which endured decades of war and isolation and yet is positioned to become a manufacturing powerhouse, compared to the neighbors in southeast Asia like the Philippines, Indonesia, Thailand, etc. which despite decades of favorable relations with the West yet can't seem to fulfill the most basic functions of a government.