The thing is most of this things are very common in Africa some Asian and Arabic countries, you see them saying things the way it's supposed to be openly but practically doing a different thing, democracy has never existed in Africa, what we have here are recircled political class, in one of the African countries I know which I won't mention, what happens their is divide and rule,the political class don't care about the personality of the incoming president or governor, it doesn't matter to them, what matters to them is what they stand to gain.
The video you just mentioined that you have seen has proven to you that what they call democracy is good as fallacy, there is nothing of such that exist, what we see today is autocracy, the system is very porous that individuals that are supposed to talk get compromised with bribe and if you refused to accept it you die or remain silent forever to prevent you from dieing, it is too bad that things has gone from bad to worst.
As far as I know, democracy is just in lips, if there was such a thing, there are countries that are very rich in terms of natural resources, infact some state are very rich in terms of natural resources but the statutory allocation given to them looks like when you are gifting someone money, in democratic system where federal system of government is been practiced, this things don't happen but it is unfortunate that democracy has been humiliated to the extent that it's existence is just a mere talk to deceive the outside world from knowing the exact happening within the political class.
I am not African so I can't talk about that continent, but I am pretty sure that not every nation in a whole continent could be all the same, there must be some nations different from others, isn't it? Maybe I am wrong but it feels like that natural possibility, it's a whole continent, from Egypt to Morrocco to all the way down to south Africa, how could every nation there be all equals, feels like they would be different.
I can talk about Europe, and the weird thing is, slavery did existed in Europe a bit, but mostly it didn't really exist within, there were periods, like "slave" comes from literally slavic people for example, or roman empire did brought in slaves, but afterwards, they just used slaves where they are, so if they go to Africa, they use Africans to mine minerals, not bring them to England or something. That is why it's a different situation. In the end, we do not have modern-slavery, we have freedom, at least where I have, I have freedom.