Well, Japan has loosened the immigration rules a lot in the last few years.

Define "loosened"?

Most immigrants are from China, followed by Vietnam & Korea. They only appear to approve 99,000 permanent long term residents a year. The rest are temporary or seasonal workers. Asylum seekers are far smaller. Only 10,000 a year, which was actually a 50% decrease from the previous year.

https://www.oecd-ilibrary.org/sites/e025d47d-en/index.html?itemId=/content/component/e025d47d-en

Racially speaking, importing other East Asians does not dilute their gene pool. So I don't expect the Japanese phenotype to actually disappear.

The Vatican is an example, where the population only exists due to migration.

See the above.

Still lunatics and not what you commonly understand as a religious man in the west.

When they make national news, it's absolutely a fault of the West for tolerating religion. Just like how every Black person is not George Floyd, yet it still took only one of them to reach headlines and cause social destruction for 6+ months.

All of this proves my point. Why did we not see George Floyd riots in Japan? Or other religious sponsored tragedies? Japanese culture does its best to avoid them. Whereas the West doesn't and it clearly pays the price for it.

It is by no means exclusive to Japan, still a factor, that weakens the case for Japan being some kind of utopia.

What makes it a factor? Japan makes a lot of cartoons, so naturally there will be smut artists to go with it. But the majority of all anime, made year after year, is not pornographic.

https://myanimelist.net/anime/season

Not the worst, but still bad.

True, but it requires nuance.

Jamaica & Mexico have a lower divorce rate than Japan per capita, but they're also one of the most homicidal nations on Earth. Would you really want to risk getting married when it could be your last?

https://www.statista.com/statistics/1226451/lowest-divorce-rate-worldwide-by-country/

I never denied, that Japanese people are behaving according to their IQ, culture, etc. Once again, the question is not, whether there is some society, that is worse. The question is, whether Japan is some kind of utopia. And once again, no, such a high divorce rate as well as the low fertility rate hardly imply healthy family life.

It has a functioning government, super safe society, 3rd largest economy in the world. On top of already being rated low for divorces, it's as close to a utopia that takes into account every aspect of life.

Again, see the Jamaica example. It does certain things better, but other things far far worse. Yet why is Jamaica still called third world? Because the world has higher standards that weighs EVERYTHING.

Come on. There is a huge difference between "Maybe I am more interested in other things like a healthy culture, nature, families, etc.?" and "the idea that Japan can't raise healthy families is a weird claim". One of these statements says, that Japanese society in general today does not resemble, what I consider healthy families (see divorce rates, etc.), while the other says, that there is no healthy family in Japan at all.

Then you need to respond with a country that consistently (read that word carefully) scores high in nearly all benchmarks. I call Japan a utopia because the quality of life is above average in ways that most nations dream they could hold as many titles as them. Or it's still a country I would consider to be the model to copy to reaching a utopia.