Fantastic place to live if you have money...not so great on a tight budget (unless you're young and single.)

Generally a terrible place to work....but there are exceptions.

I've experienced curiosity but never any racism or xenophobia.... but I'm Caucasian. Japanese are racists toward other Asians.

Returnees and 2nd generation Japanese sometimes have a hard time, but some people make it work.

Japanese elementary school is a great experience for a year or two, but a terrible experience once you get into the juku/entrance exam routine.

International schools are pretty good.

I would not want kids going to elementary or middle school in the U.S. It's a pretty toxic environment IMHO.

Japan is doomed to gradual decline but they'll manage it in a non-catastrophic manner.

Totally get why you would like to live/raise kids in Japan. I know a fair amount about business, employment, opportunities in Japan. Don't want to say too much on the forum, but PM me if you would like advice.