I actually find the Western unawareness of how Japan has become an immigrant society, especially in service roles, to be hilarious. It's by far the biggest Japanese social change in the last 20 years probably up there with growing acceptance of LGBT lifestyles and is a massive, divisive political issue in Japan now. Also further goes to show how much idealized othering happens in these discussions.
The average konbini service worker a foreigner interacts with in Tokyo is going to be an immigrant. 12 years ago, I only met a handful of immigrant service workers.
A lot of that is operational as well - historically, the only other country with a large Japanese speaking population was South Korea, but salaries there have largely aligned and the post-1990s generation switched to concentrating on English instead of Japanese fluency. China has started to fill that gap though (hence why Chinese immigrants in Japan are viewed the same way as Indians are in Canada).
Basically, a company that whose entire internal documentation, communication, archive, and processes were always in Japanese will always bias in favor of hiring Japanese fluent employees, most of whom live in Japan and are Japanese.
You see the same thing in European countries as well, but the difference is it's easier for a German or French company to find talent somewhere else that is German or French fluent (eg. Turkiye/Poland or Morocco/Romania/ respectively).
The newer gen companies have a strong English muscle, but those are also the kinds of companies that are happy shifting hiring overwhelmingly to India or ASEAN.
Yet you see the same tropes peddled ad nauseum. I may as well use the same priors for Poland in 2026 as I would in the 2000s then when it was Europe's punching bag.
The reality is stuff changes.