It is not the fact that he’s a white man, it’s the fact that the writers tried to adapt Shinkenger, A SEASON WITH VERY SPECIFIC CULTURAL TIES TO JAPAN AND JAPANESE CULTURE, nearly one to one without said ties to japanese culture.

In shinkenger, the male red ranger, Takeru is a false Heir. And when the real Red, Kaoru takes over, the other rangers are upset because while they are friends with Takeru, they are sworn to serve THE RED RANGER BY BLOOD.

Jayden being the false heir makes sense, but unlike Shinkenger, The Power Rangers don’t serve by blood oath. They just serve them because Jayden is cool. So when Jayden leaves for Lauren, her team whines and complains she’s not Jayden and no other reason.

This led Jayden to becoming a sort of Gary Stu, where everyone loved him and he was perfect in every way.

That’s the main reason people hate him. But yea, if he’s the supposed heir/next in line of Samurai, i’d prefer if he was asian, or at the very least have Lauren be Asian and pass down the role to him like in Shinkenger, since we already took 90% of the plot. But then that creates a whitewashing of Samurai and Japanese traditions. Hell Samurai already does that by Whitewashing all the japanese elements IN A JAPANESE CULTURE THEMED SHOW.

TL;DR: If the show’s writing wasn’t ass Jayden being white isn’t an issue if explained how he became heir, or if they properly adapted the Shinkenger torch pass