Wish I could disagree but it's Japan, everything is set in stone and that manifests in employment to an extreme degree. Labor shortages are an incessant topic on the news but nothing has changed in the recruitment cycle for the last 30 years. I "pass" as Japanese and my language skills are fine but there's so many layers of unspoken rules that even I struggled after moving here. Can't imagine what the transition would be like for someone who isn't fluent.
There's a reason why all the Japanese-Americans go back and the nerdy white expats congregate in Japan.