Muhammad Ali's experiences significantly shaped his activism, particularly concerning racial injustice and Vietnam War opposition. Growing up in a racially segregated America, Ali faced discrimination, which fueled his passion for civil rights. His refusal to serve in the Vietnam War on moral and religious grounds, famously declaring, "I ain't got no quarrel with them Viet Cong," led to widespread public attention and controversy. This act of defiance resulted in his boxing titles being stripped, but it cemented his status as a symbol of protest and social justice, inspiring future generations to stand against oppression.