You are right. So we must look at why this isn't happening. From a moral perspective it should.
Resources and capability are available but the ones at the steering wheel are not willing to allow them to be used. Otherwise it would be done, right?
Does anyone have any explanation for this? How popular would this action be with the people of North America/Europe/Asia? Would it even make a dent in terms of budget when compared to typical foreign aid payments for example?
The Chinese are heavily investing in Africa to gain influence and resources, the Europeans ship off billions of Euros in goods and cash for aid, the US is also buying influence with aid all over Africa.
Is it simply not paying off? There is no short term political or economic benefit here? Is that it?