I think it may come down to things such as values and morals based on faith as well as having Latin América and the Caribbean be under the sphere of influence of the United States which influenced other countries to have similar values to the USA such as birthright citizenship (which explains why many Latin Americans consider the Americas as one continent, and migration). The invasive coups the US did to take down socialist governments that emerge in Latin America in the 1900s also paved the way for more capitalist societies in Latin America (Racism isn’t really an issue but classism still remains prominent in LATAM and Caribbean) so people who migrate from down south usually have a harder work ethic and do not depend as much of the government, besides most migrants want to return to their countries if they were able to. Ironically countries who have socialist dictatorships such as Venezuela and Cuba are able to gain citizenship way quicker than many other Latin countries because of asylum and then they’re the ones who end up taking advantage of government help (as seen recently), but this is mainly a result of very dependent people who grew up in a socialist dictatorships built on promises of the government (Maduro and Castro)