Something else not mentioned in all this is the money. The money for hunting animals goes a long way towards preserving, protecting, and managing all the species in an area. Hunters and hunting for whatever purpose, are the main source of funding to actually protect the very animals being hunted. It is self-sustainable to sacrifice one select animal to protect many many other animals. Hunting is almost the sole funding for all the successful wildlife programs around the world.
Just like here in the US where hunting permits are the lifeblood of state fish and game departments.
The money these African countries charge for permits goes far in the fight against professional poachers. The desire for animal parts, in China especially, is high due to their beliefs that rhino horn has special/magical properties, or elephant parts are special in their healing properties.
As long as the Chinese and others demand these things there will be professional poachers and African States will have to pay more to protect the wildlife.
Ditto