Why did Manco Inca lead a rebellion against the Spaniards in 1536?

Manco Inca initially served as a puppet ruler under the Spanish, having been placed on the throne by Francisco Pizarro following the death of Atahuallpa. However, he eventually realized that he possessed very little actual authority and that the Spanish presence was a greater threat to his people than the internal factions he had previously opposed.12

By 1535, Manco Inca recognized that the Spanish were systematically consolidating control over Peru and preventing him from reestablishing his own rule. Driven by the realization that he was being used and that his sovereignty was being dismantled, he fled to the Yucay Valley to raise an army. This culminated in his decision to lead a massive rebellion in 1536, during which he launched a significant assault on the Inca capital of Cuzco in an attempt to reclaim his empire from the conquistadors.21