Those predictions have completely failed and were replaced by new issues.
Solved problem for now. A large part of world's agriculture is dependent on stable rainfalls and temperatures. If climate change gets bad enough, a big collapse in world's food production capability might happen.
We should not forget the significant amount of soil erosion. Not only, but especially in already vulnerable regions. While I will probably not get to feel it, the next generation will.
There are quite relevant studies already showing how the erosion of soil is already impacting agricultural yields. And that it is likely only getting worse from here on out.
It really isn't...
The good news is that the answer is to reduce the cost and carbon impact of energy production, and we’re making great progress here, but we cannot afford to take our foot off the gas, because although Ehrlich was wrong about the timing, he wasn’t wrong in his fundamental observation that the Earth has a finite carrying capacity.
All of those things came to be - and we're on track for food shortages and famines too with the environmental crisis.
The latter has the qualifier "without interventions". The interventions just happened (widespread acceptance of abortion, "1 child per family", increased neoliberalization attack leading to less people being able to afford to start a family, cultural changes around marrying, loneliness epidemic, etc).
There is more trade then ever people are richer then ever and therefore less likely to have kids. 1 child per family law was a gross violation of human rights that likely did not significantly change the birth rate compared to other countries