you want me to tell you what's causing this? rampant feminism in the western world, notice how many western women cant cook, lack motherly skills, dont want children but a career, many have turned into total man haters and gold diggers are actually considered "cool" the US for example in the 50's had a very healthy birth rate (today's baby boomers) and is due to the fact that 50's america was a type of place where momma stay home raising children and being a mommy to her 3 or 4 children while daddy provided. once society moves away from that model, which has actually kept the population going for thousands of years, once the so called modern western ideals set in a society it's when birth rates become catastrophic because suddenly having a car, a great job and a big house is more important than creating a family..... modern western values are not compatible with traditional family roles, and unfrotunately for the west, it;s those traditional roles the ones that usually keep societies healthy with plentiful values and going demographically speaking.