Dr. Ainsworth appears to take a psychodynamic perspective on personality
The correct answer to this open question is the following.
Existentialism, anti-colonialism, and the quest for personal freedom influenced the landmarks of the last fifty years in that they were the dominant concepts that supported Neoliberalism, as the imperative economic system in modern western societies.
During these last fifty years, those concepts shaped the thinking of corporate America. An economic and political system that promoted free market, where corporations became so rich, countries signed free trade agreements, multinational companies opened branches in many third world companies, and unfortunately, it never impacted in a positive way to the working class, just benefited the rich people.
That is why today we see so many protests and demonstration in many countries, including the US, where people are demanding drastic changes after the US Crisis of 2008, when the federal government decided to support and rescue the big bankers and corporations, instead of supporting the interests of the common American citizen.
The passage of the Indian Removal Act of 1830 resulted in the second battle of Seminole Wars (1835-1842).
The Seminole Wars were three conflicts based in Florida between the Seminole Tribe and the United States Army. The conflict was based on Seminoles fighting back against the forcible removal of Native Americans to federal reservations. The Seminoles, who were outnumbered, used guerilla “hit and run” war tactics that are still studied today.
Economic and political partnership
