What factor or factors led to sulvia mendez being denied her civil rights?

Sylvia Mendez was denied her civil rights primarily due to racial discrimination and segregation practices that were prevalent in the United States during the 1940s. Despite being of Mexican descent, she and her family were subjected to discriminatory policies that placed them in a separate school for Mexican children, reflecting the systemic racism that marginalized Latino communities. This treatment was rooted in broader societal attitudes that devalued non-white individuals and reinforced segregation in education and other public services.