What places like Japan and china are is ethnically homogeneous society it's just what they are

And what most western societies used to be before the second world war

It's only the mass immigration over the previous six decades and people's being drummed in to be accepting

Foreign people's as enabled the multi-ethnic society and multicultural society we have today

That is not the historical norm everywhere else

The places like Japan and china they are for the dominant ethnic group within those societies

We don't have to like it but that is their choice of what kind of society they want to be