How did Jyotirao, the reformer, justify his criticism of caste inequality in society?

Jyotirao Phule, who stood against caste inequality, believed that the upper castes being ‘Aryans’, were not the original inhabitants of their lands. He put forward his opinions by telling people that the land has always belonged to the lower-caste people and that the Aryans were outsiders. He looked forward to the golden age when lower-caste people would live peacefully without the intrusion of upper castes.