Oh no, not this again... There's enough food for everyone and we throw most of it away. Farming can be improved, and we also need to change our diets and how we distribute food. Water is equally abundant, but we can't have huge cities in the desert. That sort of stuff.

Calling people existing a problem is itself problematic. It's a step on the way to socially pressure or outright forbid people from having children, which makes existing power dynamics super creepy. Like, you think the rich and powerful will ever be denied this right? It's always some nebulous other or people generally who should stop existing or having babies. Dystopian rhetoric if you ask me. The road to eugenics, fascism, genocide is paved with green liberals concerned about overpopulation.