What actions made no ding Diem an unpopular leader in South Vietnam?

Ngo Dinh Diem became an unpopular leader in South Vietnam due to his authoritarian governance, repression of political dissent, and favoritism towards Catholics, alienating the Buddhist majority. His refusal to implement land reforms and his heavy-handed approach to handling opposition, including the persecution of Buddhists, sparked widespread protests. Additionally, Diem's reliance on American support and failure to effectively address corruption and poverty further eroded his legitimacy among the South Vietnamese populace. These factors contributed to increasing discontent and ultimately led to his downfall.