Places like the UK and Germany which have much better working conditions have a similarly ageing, shrinking 'native' population though, so I don't think so. This is just a fairly normal thing for a developed country to experience.
The difference there is those countries can top-up their growth through immigration.
Yeah, I can see that. Honestly I think having the world's population be reduced by a third (via lack of baby-making, not death of course) is something that we need. It sucks when it's just one country that is having such an impact - but as you said, it seems many others may be starting to go through this too.