FFS, I'm on mobile, I'm not swiping you a novel.
Plus you only want a fight and to discard any evidence I provide for you. Like a site filled with actual information about the guy in this vague meme, which you ignore. Even though it's clearly the "source" of the "data" for this meme. Ugh, this is like talking to MAGA people on Facebook, reality is bad, feelings only good.
About the literacy issue, French was the official language for any former French colony, and therefore the only metric of "literacy" for many francophone counties in Africa after independence was, perversely, French. It varies by country, but ECOWAS countries didn't start officially recognizing local languages until much later.
Teaching literacy in local languages, however, is not so easy. There are no manuals or materials, and the French school system that everyone kept well into today is extremely wrote memorization based. I had a friend who did this all from the ground up 20 years ago in a widely spoken language, and everything was starting from nothing, all to get about 100 village kids to read the language they already spoke.
Why keep French? Because the elites use it to perpetuate classism. They all have flats in Paris, so none of this affects them, and only hold back the county because most French-speakers on earth are in West Africa, so they end up learning Arabic or English to try and get a university degree outside Francophone West Africa that is worth their time. It was super bold of Niger to drop French recently, as long as they sorted out how to deal with 4 main local languages that everyone speaks one or two of.
Anyway, I'm going to bed, so you have fun saying more irate things that just point to your own lack of knowledge and willingness to learn. This is not a conversion, it's a rant prompt for you, which is not worth my time. Have a nice day. Or not, you pick.