The protests are backed by the largest federation of labor unions, the largest association of Indigenous people in the Peruvian Amazon and many organizations representing poor farmers, among other groups.
Jaime Borda, who leads Red Muqui, a network of environmental and human rights organizations that work in rural Peru, said the anger in the streets stemmed not just from frustration over Mr. Castillo’s removal but from a larger “discontent of the population for all the accumulated things of these last years,” namely a political system that to many seemed to encourage corruption and serve the elite.
Many protesters, he said, believed that Mr. Castillo had been driven toward political self-destruction by that same elite political class.
Mr. Castillo’s supporters “are very aware that in the end that was not the way to go, to attempt a coup d’état,” he said. “But people also tell you that we have elected him as our representative, we have elected him as our president.”
Cunarc, an association of rural security patrols, is among the groups leading the protests.
Santos Saavedra, Cunarc’s president, said that Ms. Boluarte’s call for dialogue “is going to be impossible, because the population does not recognize the de facto government.”
Victoriano Laura, 48, a miner in the city of La Rinconada, high in the Andes Mountains, said on Tuesday that many people were traveling from La Rinconada to the city of Juliaca, about 100 miles away, to protest.
“People are furious” about the president’s removal, he said. “The violence is starting because of the provocation of the police, and people aren’t going to remain quiet.”