Despite representing just 8% of the world’s population, the region accounts for nearly one-third of global homicides.
Breaking Latin America’s Cycle of Low Growth and Violence
North and Sub-Saharran Africa are poorer than Latin America but have much less murder going on. What’s going on in Latin America?


Those are relative explanations as in relative to the region. Compare it to Africa where the crime rate and murder rate is quite different despite there being active wars on the continent. Violence is of course present but not at the same level as in South America.
if things are static in africa, then the base level of violence may be maintained, wheras increases in factors can lead to increases in violence.
Relative?
There is a long list of correlations.
A lot of the “relative” is within the same country and just a varied time frame so your different reguon interpretation is flawed.
You seem to need simplistic answers and the quote above pretty clearly points to recessions, gang activity (presumably related to drugs), inequality and governance as having some correlation (but I’m lazy and didn’t properly read again). You could look up rates and compare if you wanted to have an idea of where some things might be different. That would be hugely speculative though
Are you conflating violence (a broad term) with homicide?