Sorry baseman but MH cracked the truth in that Luckhood scheme. It was to ensure that the Indian population began to outnumber the combined black and colored populations. The black and colored organizations sniffing a rat then demanded that immigration from the Caribbean also be encouraged.
Clearly it was cheaper to bring in workers from Jamaica, which at the time had massive migration if labor shortages were the only issue. Clearly a political issue of ethnic dominance was the main goal.