Why did people not like ngo dinh diem?

Ngo Dinh Diem, the first president of South Vietnam, faced widespread discontent due to his authoritarian rule, favoritism towards Catholics in a predominantly Buddhist country, and perceived corruption. His oppressive policies, including the persecution of political opponents and strict censorship, alienated many. Additionally, his failure to address social issues and economic challenges contributed to growing unrest, ultimately leading to his downfall.