I don't think anyone is under the impression that the country of Japan is obligated to do what some random Internet commenter thinks.
People are allowed to have opinions that something would be a good course of action or not. That's not paternalism.
People are allowed to have opinions that something would be a good course of action or not. That's not paternalism.
Do this, be more like (supposedly virtuous) X and don't be Y & Z is clear paternalism and, in my opinion, highly arrogant paternalism to boot.
What's far more arrogant is you thinking your culture is so magically different that you're somehow immune to such criticisms. I wonder how the Koreans and Chinese would feel about that.
It’s okay to admit that the US has done immigration well. It has. There are a great many things that Japan does better than the US. We can discuss them without taking umbrage.