What underlying social factors contribute to the perception that race is a fixed biological characteristic rather than a social construct?

Many people believe that race is a fixed biological characteristic because of historical ideas and practices that link physical traits to identity. For example, throughout history, societies have used skin color and other physical features to categorize people, often leading to stereotypes and discrimination. This has created a perception that these traits define who people are, rather than recognizing that race is shaped by social experiences and cultural contexts. Additionally, media representations and educational systems often reinforce these fixed ideas by not highlighting the complexity of race as a social construct. A concrete example is how different cultures may have varying definitions of race, showing that it is not just about biology but also about how society views and treats individuals.