You equated racism and xenophobia with a lack of desire for immigrants. Those are quite different concepts, even if there is an overlap.
Furthermore, you condemned an entire nation and wished harm upon them on the basis of a perceived breach of your own values, which I might add are not completely clear to me.
It doesn't have much to do with cultural relativism, but with the assumption that you know what's good for Japan better than they do.
Yeah, you're totally right. Pointing out that it's not that terrible if a society's largest problem is that many of its young males are depressed is exactly the same as endorsing cannibalism or underage marriage. You clearly have won the internet for today.
Theit system has a number of problems but it also has a number of advantages.
Besides, the countries who do let in immigrants are less xenophobic but not by a wide margin.