No, Joe Frazier was never a White mans champion, not to the average Black person. But some did get a little brainwashed by Ali's promotional tactics, which had more affect after Frazier left the ring, especially the White man champion tactic.
I made a few threads on this topic a couple of years ago, trying to clear Frazier's name for those who still wonder about that, or for those who weren't there. I think those who remember Frazier in the ring, but still got brainwashed by this tarnished image, sort of snapped out of it when Frazier passed away, and saw how much he was really loved by the Black community.
The truth always shines through. But tbh, it shouldn't have even caused his passing to snap people out of that rumor. George Foreman walked around the ring waving the American flag, which was during the peak of the Civil Rights Movement. If he wasn't labeled the White mans champion, then no way could anybody say that about Frazier when he was in the ring, and make any sense. Only Ali could have pulled that off, and it appears he did with some. But I don't think any full grown adults at that time ever believed Joe Frazier was a White mans champion, especially the middle aged adults.
And even though more White people voted for Frazier than Ali, he was never their champion. That never made any sense, especially after Frazier beat all their White boxers. When more White people voted for Hollyfield than Tyson, when Tyson was also heavy into the Muslims during this time, that surely didn't make Hollyfield the White mans champion. Like what do Black people be thinking sometimes
. Then again, since I was around during this time, and even though I was only in elementary and junior high school during Frazier's era, out of all the Black people who voted for Ali against Frazier, only a handful probably felt he was really the White mans champion, if even that many. Like I said, that White mans champion image was never shared by us when Frazier was boxing. But I'm afraid some of those other negative tactics that Ali put out there were, including "The Thriller in Manila with the Gorilla ", etc...
Now I don't want anybody to think I was never a Ali fan, but when it come to Joe Frazier, and Frazier being the first champion I knew, and since I was too young to remember either of the Ali vs Liston fights, I feel more people who can be honest about the atmosphere during Frazier's era, should defend his legacy, since people still wonder if he was really the White mans champion. But the sad thing is, a lot of people who were mature age or middle-age adults during Frazier's career, and could tell you the truth, aren't here anymore.