What drove quanah parker to fight so hard against the united states?

Quanah Parker was very angry about what had happened to his family, they had been separated, his mother and father did not meet again, he did not see his sister ever again, and that filled him with hatred and drove him to fight very hard against the American forces, but after 2 years he surrendered and finally reconciled with an uncle, who helped him to insert himself into the society he always hated and criticized so much, white society.

Vengeance for his family's destruction-- Quanah's mother was captured by Texas Rangers and there is no record of what happened to his father. 

Quanah Parker was a Comanche warrior who fought against Texas expansion west. Parker worked with other raiding groups who targeted buffalo hunters. After a full push by the US army, Parker was forced to surrender and agreed to live out his life on a reservation in Oklahoma.