Immigration will only delay the inevitable extinction of the Japanese race, unless they figure out how to induce women to marry young and have kids (plural, not just one or two)
I always thought biological clues were ways of telling how it should be.
Women should marry in their 20’s. Their youth and beauty gives them the best opportunity to marry the best man they can have.
If they have kids, they take care of them until the child starts to become independent of them. At that point, the father then spends as much time as he can with them to help them gain confidence in the world and they can help him because they’ve become more lively than bread boxes. At this point, the mother can go workoutside the home if she wishes. Although that doesn’t mean that she can’t get training to work outside the home along the way.
Declining birth rates self correct. It is a curve and it levels out. The static thinking here is astounding.