Sociobiology which came into being in the line of the development of evolutionary biology and evolutionary psychology is a program to explain the human, social and cultural phenomena from the biological claim. Such a so-called explanatory reductionism of man and culture, even though camouflaged with the name Consilience, is in the reality a program, which tries to reduce human, social and cultural phenomena to the basic biological phenomenon/principle of surviving and reproducing. With it sociobiology can propagate practically biological worldview and racism as a code of social construction. Competition, selection, adaptation, etc. are now wide-spreading in the era of Neo-liberalism, ideology of which goes with that of sociobiology hand in hand. In this article, I criticize the sociobiology from the viewpoint of philosophy of science rather than from the viewpoint of ideological critic. First, I formulate keypoints of the evolutionary discourses (evolutionary biology, evolutionary psychology and sociobiology), and then trace back to methodological sources which enables sociobiology to reduce human and culture to biological traits. Then I try to reveal the problems of sociobiological worldview by concentrating on the chracteristics of human being as in-the-world-existing-being, or as a being which is interwined with the world and as a being which is in need of first-person-perspective approach. By discussing these points I try not only to reveal the problems of the sociobiological worldview but also I propose, at the same time, an alternative way to understand human being, and the the correct way to understand consilience.