C. D. Tavares said:

Hey, Tim — perhaps you can compare the ten largest US cities —
the places where the vast majority of US violent crime occurs — with
third world nations, and then enumerate for us the sociological factors
for which there is a tinker’s damn worth of difference between the two.

If you want to claim that the ten largest US cities are similar to
third world nations then it is up to you to do the research.

If you want something easier, you could trying looking up some crime
figures and tell us what percentage of US violent crime occurs in the
ten largest cities. Bet you don’t find that it is a “vast majority”.