Although I mostly agree with you, what are some examples of economies that suffered as a result of overpopulation? China and India seem to be doing fine. I mean

Although I mostly agree with you, what are some examples of economies that suffered as a result of overpopulation? China and India seem to be doing fine. I mean, it seems obvious that the wave has to break but I just don't think we've seen it happen yet so it's hard to predict. (Not a history buff so maybe I'm missing something obvious.)