Her ancestors were forced to go to the West Indies, from India. They went as semi-slaves, and forced to convert to Christianity.

Why is it the only thing you know about India is the caste system? The only time it was legal was under the British Rule. At that point, there was apartheid in India - European only schools, hotels, streets, etc. They didn't mind if there was discrimination among Indians.

As soon as India became independent, caste discrimination was outlawed. Whereas in Hong Kong, Africa, the USA, and other British colonies practiced apartheid for centuries. In Hong Kong, till the 1990s, there were EUropean only schools, neighbourhoods, clubs etc. In the USA, till the 1960s, segregation was legal. Interracial marriage was illegal. And so on.