The apartheid regime in South Africa was one of the harshest and most inhuman systems in the world because it was a system of institutionalized racial segregation and discrimination. It systematically denied non-white South Africans their basic human rights, including the right to vote, own land, move freely, and access quality education and healthcare. The regime enforced strict racial classifications, leading to forced removals, economic exploitation, and brutal suppression of dissent, resulting in immense suffering and injustice for the majority of the population. That's 2 down. 3 left today — send the next one.