Examples that come to mind:

Persona 5 Royal sold an estimated 2M on Steam, almost as much as what it sold on PS4 (2.3M) and far more than PS5 (300K).

Nier Automata sold an estimated 4M on Steam, about half of its total 8M sales across all platforms.

Afro Samurai isn't about Yasuke, but it does appear to be inspired by him. And Japanese audiences definitely had no issue with it back in the days. But Afro Samurai was made in Japan, whereas Assassin's Creed is made in the West, so they might react differently.

DD2 sold 2.62M in its first week. That would mean it likely sold somewhere around 3-4M in its first month. I doubt Capcom were ever expecting it to sell 5M in its first month, as that would be in the same ball park as their top franchises Resident Evil and Monster Hunter. Capcom are more than happy with DD2's launch sales.

Let's not pretend that Western countries don't have an infinitely worse history of racism against dark-skin people...

But I can see your point. I haven't seen Japan's reactions yet, but they would have every right to be offended. However, if they weren't also offended by white samurai protagonists in the likes of Nioh, Shogun, or Last Samurai, then that would be hypocritical.

"Never attribute to malice that which is adequately explained by stupidity."

- Hanlon's razor

According to several reliable academic sources, Yasuke was a samurai:

Yasuke (Encyclopedia Britannica)

African Samurai: The True Story of Yasuke, A Legendary Black Warrior in Feudal Japan

History of the Samurai: Legendary Warriors of Japan

Wikipedia disputes this, but it's not a reliable source. Yasuke's Wiki article especially has recently been compromised by gamer trolls editing the article with a clear agenda, making faulty claims while citing unreliable sources. So I'd take Yasuke's Wiki article with a grain of salt.

Do you have a reliable academic source to back up this claim?

The first Dragon's Dogma only had a 1M launch, yet went on to reach 8.4M lifetime sales.

DD2 had a 2.62M launch, so it's likely to surpass the first DD's lifetime sales.

I wouldn't be surprised if he doesn't speak English... Sounds like he's typing from Google Translate.

That sentence was added by a troll on Wikipedia just today. It wasn't there yesterday. There was apparently an edit war that led to the article being locked and now they're debating it on Wikipedia whether to keep that sentence.

The sources cited for that sentence are unreliable sources, basically two news articles written by journalists. In contrast, several academic sources written by scholars refer to him as a samurai, like Encyclopedia Britannica or several sources at Google Scholar.