[3] During the Chicano Movement, he was involved in the United Farm Workers struggle as an organizer and musician,[4] having been repeatedly asked by César Chávez to perform.
He also joined the Centro Cultural de la Raza-affiliate Teatro Mestizo, with which he was able to meet Agustín Lira, Daniel Valdez, Eduardo Robledo, Enrique Ramirez, and Fernando Leyva.
Despite him having mediated a truce between the Del Sol and San Ysidro gangs, the property leased for $1 from the city was considered for a housing project.
[6] He also faced difficulty as a member of the CPSC when from 1983 to 1986 Alvin "Al" Ducheny fought for an additional 5.4 acres (2.2 ha) for Chicano Park.
Chairman of the left-wing Harborview Community Council, founded in 1981, Ducheny, his wife Denise, and the organization's ~30 members contested for space as activists in Barrio Logan.
[14] Although the land was not granted, the San Diego Port voluntarily ceded a disconnected parcel on the coast in 1990, forming Chicanito Park.
[20] That year, he was also featured in a new mural at Chicano Park with Our Lady of Guadalupe as the central figure; Sánchez was positioned to her right next to Dolores Huerta and Border Angels.