i don't think overpopulation is the problem, but maybe it's a symptom. the problem is we've forced our way up to an unrealistically high standard of living which is completely unsustainable, and now we're trapped in an inescapable death spiral because nobody wants to go back.
people aren't willing to stop paying for conveniences because they're cheaply available, corporations aren't willing to stop selling them because there's a demand for it and money to be made, and governments aren't willing to force anybody's hand because the people and corporations will both force them out of power if they try.
there is absolutely no chance of breaking out of it other than giving up on democracy, but that will only happen when modern society collapses entirely, which will be far too late to prevent unimaginable suffering on a massive scale.
people aren't willing to stop paying for conveniences because they're cheaply available, corporations aren't willing to stop selling them because there's a demand for it and money to be made, and governments aren't willing to force anybody's hand because the people and corporations will both force them out of power if they try.
there is absolutely no chance of breaking out of it other than giving up on democracy, but that will only happen when modern society collapses entirely, which will be far too late to prevent unimaginable suffering on a massive scale.