You don't like spicy food?!? What about all your spicy Jamaican/Puerto Rican blood? It's in your genes!
Do you mean that as an insult to latino people?
It's meant to be a joke. Don't you get it, because Latinx and Latinos have hot blooded spicy food, it has to be their inborn trait.
You shouldn't joke too much about latinos loving certain foods to the point of obsession. It starts unnecessary social stigma if it goes too far and they end up only being known for eating spicy food.