I lean towards this response. For Jamaica, you have a culture of homophobia, you have a culture of violence; putting those two together gives you violent homophobia. This is just simple additive math.
For example, what do you get when you have a culture of rigid, societal, social-interactions and sexual conservatism? Saudi Arabian obsession with virginity. Change that conservatism to liberalness and what do you get? Japanese fetish involving squids. It’s all in the math.