GPT 3.5 (and the Internet that it scraped) is really into the White savior thing. I tried "Create a fictional account of a 1920s jujutsu fighter's career."
In the roaring 1920s, when speakeasies thrived, flapper dresses dazzled, and jazz filled the air, there was a jujutsu fighter whose name became legendary in the underground world of martial arts. His name was Jack "Iron Fist" Sullivan, a burly Irishman with a heart of gold and fists of steel.
Born and raised in the rough streets of New York City, Jack grew up in a world where survival meant being tougher than the next guy. At the age of 16, he found his way into the world of jujutsu while trying to protect his younger sister from a gang of street toughs. He stumbled into a small, dimly lit dojo run by an aging Japanese master named Sensei Hoshizaki.
To be fair, you could see this script getting greenlit, perhaps with Mark Walhberg in mind.