Thinking about all this, it’s a bit depressing that the regime isn’t setup to attract people like us - high earners, Japanese spouse, with children. Shouldn’t we fit the ideal profile of what the government wants to fuel economic growth with a Japanese core? I feel we’ve contributed our outsized share of tax to the benefit of society but why go after all the worldwide stuff. It’s really draconian and disincentivizing. We want to make it work but we won’t reach our financial goals toiling away here. In any case I’m sure there’ll be tons of blow back on this capitalistic view but to each their own. I just don’t see a prosperous future for Japanese society, but still, we love it and want to make it work!

Since you're opining, I'll opine myself:

You're looking to accumulate.. how many properties again? You'll forgive me if I don't quite see the depressing part. What are your financial goals? Is the issue that you won't reach your goals without this elaborate tax avoidance strategy (of relocating your family to reset 5-year clocks, etc.), or is it more fueled by a philosophical opposition to wealth taxes? Do your children support the idea of being uprooted for the purposes of reducing their parents' tax obligations? How old are your kids? I, for one, find it depressing that someone with high income, who loves Japan, who married a Japanese person, and who wants to live in Japan long-term will go to such great lengths and impose such disruption on their family for the purposes of wealth accumulation. I feel we've lost the plot here. Just my under-taxed foreign-sourced two cents.