I could see non-nigerians getting upset over this. Like, Kenya, South Africa, Ghana, etc ain't ask for all this smoke. Plus, a PAN AFRICAN model would work best. This just puts up more walls when the continent should be united.
See, Europeans know what they mean when they say "European"

... But the African diaspora could benefit from actual pan-africanism.
I get what they're trying to do. A lot of countries have similar things for different industries. For example Canadian radio and TV has to play a certain percentage of Canadian artists or domestic content.
https://crtc.gc.ca/eng/cancon/r_cdn.htm
en.wikipedia.org
The "problem" is that it can easily be flipped against us as black people en masse with the already few opportunities we get. The point should be universalism, but white supremacy has kinda warped black perceptions of internalized beauty so heavy handed shyt like this overshoots the mark.
Trust me, I get the point of all this.
Oh, and imagine if you can't source something from Africa....how's that affect business? Theres other ways of doing this without being so heavy handed especially if you're a growing economy and country without domestic, much less continental sourcing of items.
Nigeria imports too many goods to think this is alone enough to jumpstart their domestic industry.