I agree with all of your points -- they are indeed very informative, and I have indeed learned a lot just from reading them-- but I would just like to add the following point: Europe has indeed significantly declined from it's position a century ago. Back then, before the World Wars, Europe was the single undisputed economic and political global pole from which all other continents were defined and effectively governed, and perhaps only the United States and Japan truly remained independent as non-European powers. Now, this is no longer the case, as North America and East Asia have become influential economic centres in their own right, and thus siphoned away part of Europe's former influence and power. Which, of course, is in part result to the World Wars, but also to China's economic development. One can only hope that Africa and the rest of Asia will follow suit.
Taking into account natural demographics, indeed, it only paints a future of relative geopolitical decline[1]. In 1913, on the eve of the First World War, Africa's population was 125 million compared to Europe's 498 million. Today? Europe's 748 million is dwarfed by Africa's 1,364 million people. But then, simple populations do not determine everything, and indeed Europe is in the superior position in it's relationship with Africa, as evidenced by a simple look at their compared nominal GDP -- but will it last forever? Certainly not. In 2100, for example, a UN estimate predicts that Africa's population will be 4.3 billion compared to Europe's 630 million.
Europe and America have indeed maintained themselves at the world table, but year by year they are slowly conceding more and more power to the Global South, and there will eventually come a time when the West's collective voice will only be one heard among many.
That is not to say neocolonialism will simply end with the (relative) decline of Europe; indeed, French and British corporations in Africa will simply be slowly replaced, if not completely, by Chinese and Indian ones. Of course, it is not all doom and gloom, for the world has generally progressed both socially and economically. Especially in the Global South, living standards, literacy rates, life expectancies, they are all rising, if still hampered by nepotism/corruption, tribalism, geography and neocolonialism.
Indeed, as someone from a developing third-world country myself, the Philippines, my older relatives only tell me about how much things have gotten better, how I've had it so easy with technology, how they didn't have toilets, no widespead air-conditioning back then... Of course, widespread and pervasive extreme poverty remains, we are still a corrupt third world country governed in a feudal arrangement by entrenched and rich family oligarchs, but we have made some progress.
[1] Of course, Europe will very likely remain the world's richest continent with the highest living standards, only perhaps East Asia could catch up per capita wise, and that assumes nothing goes bad for China in the following decades.
