Final answer:
Émile Durkheim emphasized that too much egoism weakens the integration of the community and removes much of the social support necessary for individual well-being.
Step-by-step explanation:
Émile Durkheim, the theorist in question, emphasized that too much egoism weakens the integration of the community and removes much of the social support necessary for individual well-being. Durkheim believed that society is a complex system of interrelated and interdependent parts that work together to maintain stability. He argued that social solidarity, a sense of community, is crucial for the well-being of individuals, and excessive egoism can undermine this solidarity.