That's basically the reality of the situation. We're dealing with some very stupid and evil people here. Part of their ideology left-over from several decades ago and thoroughly debunked amounts to a belief that the planet itself is badly overpopulated and already beyond its "carrying capacity" for humans. In the 1970s you read claims that we would be running of pretty much everything in another two or three decades and there was a famous case of a book called "The Population Bomb" and its author, Paul Ehrlich, who made a wager with the economist Julian Simon on a line-item basis involving several metal commodities
The general gist of Simon's claims is borne out by looking at prices over the entire 20'th century. There is no limit to human imagination and we will always find substitutes for anything which turns up scarce temporarily.
Nonetheless the idiots go on with their bullshit. You even get lunatics like Prince Phillip claiming they'd like to be reincarnated as some deadly virus to help bring human population back under control for the glory of "Gaea(TM)".
But in real life the entire human population of the world could fit comfortably in Texas and the planet could support at least 100 times its present human population.