I was a bit reductive because I didn't want to wall-of-text a discussion when a simple answer is honestly good enough. WE are products of a racist society. We are also - if you truly look around - outliers as well. Expecting someone else or most people to also be outliers... well you wouldn't be outliers anymore at that point, right? (We are looking down the barrel of a legal fascist takeover in my country, and the majority of citizens either care more about gas prices, are completely indifferent/disengaged, or actively supporting the fascists.)
At the end of the day, Naoki Yoshida is just your average, middle aged, straight, Japanese, male, who has at this point spent the majority of his life working in a Japanese corporate office. All of this nonsense is pretty par for the course, and should be the default expectation unless given clear reason to expect otherwise, IMO. The weird idolatry of "YoshiP" because he is the top billed producer of a game you enjoy has always felt, at best, intensely weird to me.
The guy lives and breathes inside multiple closed off social bubbles that is hard for most of us to even comprehend. One such bubble of broader Japanese society that is culturally and ethnically one of the most irregularly uniform and insulated cultures there are among developed countries. A country where nationality and ethnicity are interchangeable, where citizenship for a foreigner is essentially impossible, and where the values of collectivism and adherence to the group are the primary informants of how their society works. Ethnic minorities barely exist beyond tokenism, and those that do are viewed in pop culture at best as exotic, cartoon stereotypes. Usually far, far worse. To most Japanese people, black people are thought experiments they see occasionally in foreign media, not real people with thoughts, feelings, needs, and perspectives they could possibly come into contact within their daily lives.
And it's a culture where one of its most infamous and common idioms ("The nail that sticks out gets hammered down") gets said proudly as a warning to others. Even for the more progressive members of Japanese society, who are not actively racist or even harbor only minimal subconscious racial biases, their worldview is still going to be invariably shaped by the filtration of information through their language (that's a unique in the world as an isolate unrelatable and unintelligible to any other), their closed off media environment, their draconian immigration laws, and intense social ordering based on "in" and "out" groups. When you're stuck in a bubble like that, you don't look around at the hegemony of your society and lack of ethnic diversity as strange or irregular. It's what you were born into and lived and breathed your entire life and you don't see it as a problem. It is your default baseline. Even if you know intellectually it's not how the rest of the world is, there's a big difference between knowing something intellectually, and actually living/experiencing a different way of life. There are opportunities for the racists in our countries to come in contact with minorities, and the hegemonies they yearn for don't and have pretty much never existed. That is not the case in Japan. The racism and racial dynamics there are completely different and almost incomparable.
And I'm sure I don't have to regale you guys with how fucking shitty corporate business culture is in Japan. How jobs are by design, insulate their workers from society at large and trap them within their crafted social spheres, upheld by tentpoles of social drinking with your coworkers/bosses, and working absurd overtime hours and literally living in the office. Leaving very little else in terms of living experiences - let alone people - for your typical office worker to have the benefit of interacting with.
I don't outline this stuff to make excuses for the guy. I'm as disappointed as the rest of you. But I'm just explaining why I don't think anyone should expect anything different. Yes, he ought to know better. Most people ought to know better, but they don't. So having an expectation of anything else is kind of naïve. And you'd think that being in charge of a global product where the vast majority of your revenue comes from out-of-country at this point would be incentive enough for a good businessperson to take into consideration said global audience into your design and messaging. But that 1) presumes he's a good business person (he's a good product manager maybe; doing international public relations is a completely different skillset) and 2) that train of thought gives way too much credit to completely bogus Laissez-Faire economic theory of how economic incentives work. When in reality, people are flawed, stupid, creatures of habit who would rather let inertia and what's comfortable/familiar rule their decision making rather than to put in the bare minimum mental labor of being actively considerate of other points of view and modes of life.