Montesinos condemned the brutal exploitation of the Taíno people, provoking settler rage for several reasons:
Colonists relied on forced Taíno labor for gold mining and sugar plantations. Montesinos' advocacy for Taíno rights endangered their cheap labor supply.
Public criticism undermined their authority and raised fears of indigenous uprisings.
Montesinos invoked Christian duty to treat Taínos as human equals, challenging the settlers' view of them as inferior.
His sermon forced colonists to confront their cruelty, inducing guilt and shame they resented.
As a friar, his words carried Church authority, threatening colonial administration's legitimacy.
Montesinos' stand struck at the economic, political, and moral foundations of the colonial system.