Also worth noting Brand in his younger days was actually rather concerned about issues of overpopulation (and likely population pressure too), he's excerpted in the Ray Offenheiser PBS documentary about Norman Borlaug and 'the green revolution': https://www.pbs.org/wgbh/americanexperience/features/green-r...
I have strictly more complaints about John Markoff.
He is personally responsible for, e.g., Kevin Mitnick not being allowed to use the telephone while in prison, out of trumped up fear he could hack with it.
There are less than 220M people in Nigeria now. The population growth is very fast, but even on long odds it's more accurate to say "a few decades."
A bit more than 'a few'.
Regarding your comment about Africa specifically, I don't know enough and try to hold a bit of carefulness around Education if it's not being done with appropriate context. You might like this podcast that goes into a social facilitation framework being used in areas like Africa: https://www.outsideinpodcast.org/episodes/10-groupsofgroups