I DO understand what you're saying, you're just wording it poorly. Using the word inferior is too loaded a term, and is commonly used by racists to dehumanize their future victims. But, I do agree with your larger point. It's a grotesque oversimplification to claim that Africa's problems are the result of European Imperialism. And laugh-out-loud ridiculous to pontificate on how Wakanda is what Africa would have been like had it not been for Europe.
Imperialism made a mess of Africa (and everywhere else), but how was that possible in the first place? Because Europeans had more advanced education, social organization, economic sophistication and technological development. While the world's tribal cultures remained stagnant. North American tribes hadn't even invented the wheel yet. To this day, there are tribes in South America that have never come into contact with Europeans. And how do they live? They wear loin cloth, carry spears and pierce their noses with bones and sticks. Tribal. Forever. Parts of Africa are the same. Pictures of both can be found on the internet. Some cultures simply do not advance much at all. That's why it's ridiculous to claim that Africa's mess is the sole fault of the white man.
What did the white man bring to Africa that didn't already exist? War? Tribal wars are well documented. Slavery? Coptic Egyptians enslaved Africans centuries before the white man made an appearance. The slaves Europeans did buy in Africa came from Arab and black African slave dealers. To this day, Arab Libyans are enslaving black Africans who are trying to flee to Europe. One thing Europeans did bring to Africa that didn't exist before, is a European-level education.
So, is Wakanda a refreshing look at what might have been? No. It's just a work of fiction. It has value, though. Anything that can inspire African culture to something higher than subsistence living under the heel of blood-soaked Chief is worthwhile.
I was trying to make it easy for the posters, so I may not have worded it correctly. But you understand everything I meant and I appreciate you explaining it. I'm sure others will still argue with you, but they are 100% incorrect.