Konnichiwa Maciamo-san!

I talk about an abstract argument or a generalization now. It is not problem that you think it is a stereotype or not. Because if we stick to minimum case, all people can not grasp the point. Of course I don't have all knowledge of the world, I'm not the god. And I talk a generalization with out expert knowledge. You should not expect other person to the same knowledge as you. And I know religion related to various things, thought, custom, language, culture and etc. Do you think about religion? Is it a only faith? learning? It has no related to human history? And I don't connect name problem with Christianity, I connect name problem with difference of faith between Japanese and Christian.
But if you believe that religion is only a religion, but religion has not any influence with thought, custom, language, culture and etc, I think that you can not understand my said.
But it is not important with us, people has own though, and it is all different from each other.

Then, you don't make sense when you say that Japanese cannot serve 2 gods (=2 names of ancestors) because they are polytheist. That should obviously be the opposite. Better proo that religion has nothing to do with names.
You misunderstand about polytheism. Polytheism doesn't means having faith in a lot of gods. Polytheism means accepting a lot of god's existence. Polytheist don't believe in all gods. Generally polytheist has main god to believe. It is the same as Japanese, Japanese accept the existence of other gods, but Japanese believe in their ancestor mainly.

But sorry, that explanation is my short of talking(explanation). Oh, my all explanation is shorter.

so why are Japanese so reluctant to adopt children?
The Japanese regards family line as important, but it does not means real blood line certainly. But if you has your son now, do you adopt a child? I think that you don't adopt. It is same as the Japanese. All people wish their own child. Especially Japanese regards family line as important, own true child is better than adopting. But this is a comparison of true child or adopting. And this is not relation to family line. Japanese wish their own true son, but if they can not get own true son, when they adopt a child.
I think that the problem of adopting child is more related to "Haji". Because Japanese think adopting child is "Haji".

NANGI