The leading figure in advocating for the rights of indigenous people is Winona LaDuke. As a Native American activist, LaDuke focuses on environmental issues, sustainable development, and cultural preservation. She is the founder of the Indigenous Women’s Network and co-founder of the Honor the Earth organization, which promotes Indigenous rights and environmental justice. Her work emphasizes the interconnectedness of social justice, environmental sustainability, and Indigenous sovereignty, making her a prominent voice in modern social and environmental activism.