No, mankind is not one giant organism with a single mind. Mankind, also known as humanity, is a collection of individual human beings, each with their own distinct consciousness, thoughts, feelings, and experiences. While we are all part of the same species, we are separate individuals with our own unique identities.
The idea of a collective human consciousness or a "hive mind" is a philosophical concept and not a scientifically proven reality. While there are instances where groups of people may come together to share common beliefs, goals, or ideas, it does not mean that they share one singular mind or consciousness. Rather, human beings have the capacity for empathy, communication, and cooperation, which allows us to work together and influence each other's thoughts and actions.
It's essential to recognize and respect the individuality of each person and their right to independent thought and decision-making. While there may be shared cultural, social, or ideological influences, the diversity of human experiences and perspectives is what makes humanity rich and multifaceted.