National Security
The books of history seem fairly clear on what happened the last time America and Japan "negotiated" about national security matters. And nuclear reactors were involved too.
Potential buyers of Toshiba’s memory business sale could be restricted by Japanese government national security concerns. According to Reuters Japan’s government is prepared to use foreign exchange and foreign trade laws to block bidders it sees as a threat to Japan’s national security. Toshiba is looking to sell a majority …
"A: unemployment "
Although they have a lot of it even with the old "cradle to grave" employment system well & truly gone and mostly replaced with a gig economy from hell.
"B: foreign people running their things."
Only the appearance of that. The only carmaker not under foreign control now is Toyota.
Japan is worth watching from a number of points of view, not least of which is that their population demographics now are where ours will be in another 15-20 years if certain elements have their way and the UK housing situation is likely to follow the same lost (two) decade pattern too.