In her book "The Old Way", Elizabeth Marshall Thomas describes the Kalahari San who she lived with in the 1950s. Despite having bows and arrows some members of that group would persistence hunt.

Dmitriy Lykov(1940-1981) of the Lykov family living an isolated life in Siberia developed a method of persistence hunting, despite or perhaps because of, the absence of any sort of hunting culture in his tiny, isolated group.

Those are just two very recent examples off the top of my head of people persistence hunting for survival. Maybe you're out of your depth on this subject.