I grew up in ranch country where Del Rio was the closest real town-it is still BFE and not hospitable if you don’t know the terrain-so these Africans definately paid some cartel to bring them through Mexico to the border-and you can bet your ass they had assistance from some clueless charity organization all the way from Africa to Guatamala, because they sure didn’t swim to S or central America-these dumbass charities need to be slapped down hard...
I also grew up in the area. Old Sheriff Koog used to let the cartels run their drugs through the county as long as they did not stay in the county.
Also - Lake Amistad, pretty humorous considering the movie Amistad. Very easy to cross, especially at night. I would also say that Africans would stick out in the community.
JMHO
Yes, those “charities” exist, but in the past it was George Soros “charities” that financed those coming in prior caravans.