It is possible for two facts to be correct at the same time. Yes it is good that Africa has access to modern building materials. It is also bad that extraction is causing problems for rural communities. These two facts are not inconsistent.
All you have really proven is how much you dislike environmentalists. A debate that is quite colloquial to a few cossated western countries. In a lot places people actually live within touching distance of the environment. The pros and cons are just obvious to everyone. Young local men get paid to move sand, which is good. But farmers need water for crops and erosion is a problem. It becomes news outside because no one has a good solution. Just another intractable social problem.
All you have really proven is how much you dislike environmentalists. A debate that is quite colloquial to a few cossated western countries. In a lot places people actually live within touching distance of the environment. The pros and cons are just obvious to everyone. Young local men get paid to move sand, which is good. But farmers need water for crops and erosion is a problem. It becomes news outside because no one has a good solution. Just another intractable social problem.