I don't know of any cases where hunter gatherers have been the main cause of an extinction.
Go back and look at the fossil records. Every time humans expanded into an area there was a wave of extinctions.
Humans are an extremely
What use do you have for thousands of feet of high-quality rope?
Many uses. I can climb, I can winch, I can put up a tent... and it's useful to the Bushmen too.
The use of ropes for hunting, pulling, fastening, attaching, carrying, lifting, and climbing dates back to prehistoric times and has always been essential to mankind's technological progress. It is likely that the earliest "ropes" were naturally occurring lengths of plant fiber, such as vines, followed soon by the first attempts at twisting and braiding these strands together to form the first proper ropes in the modern sense of the word. Impressions of cordage found on fired clay provide evidence of string and rope-making technology in Europe dating back 28,000 years. Fossilised fragments of "probably two-ply laid rope of about 7 mm diameter" were found in one of the caves at Lascaux, dating to approximately 15,000 BC.
The ancient Egyptians were probably the first civilization to develop special tools to make rope. Egyptian rope dates back to 4000 to 3500 B.C. and was generally made of water reed fibers.
AFAICT, the Bushmen don't even have 26,000 B.C. ropemaking technology.
And rope is just one example. Virtually everything we use, from glass to steel (screws, nails, autos) to plastic to electronics to antibiotics, is either a huge investment of time or cannot be produced at all by Bushmen.