From what I read, that was more of a case of not realizing how bad it was... the writers and animators thought it was a tribute. The thing that always gets lost is the fact it was a WW2 propaganda cartoon too. That was the message they were trying to spread at the time, but it got lumped in with the rest of the censored eleven The difference between Dragon Ball and Tin Tin is 50 years. Like most themes in Japanese cartoons, they basically took it from older stuff we did. Now, other than some obscure WW2 propaganda film (the Japanese did them too), they didn't draw them that way to be nasty, but rather as an homage to something we stopped doing in the 40's. of course, it should be known that in Japanese cartoons, baboon lips aren't exactly exclusive only to black charicature, but rather are imployed as a goofy looking character device... best example... And that's just one. Of course, conversely, not every black character in anime has baboon lips, just a few for a short period of time. Of course, I think Mr. Popo was supposed to be either Indian or Middle Eastern, not really black... another character called Mr. Black had sort of those kinds of lips, but was redesigned in the 90's to look more Hispanic. I should also point out, and don't ask my why I know this, it was a short lived early 80's fad to do black faced soul musicians. But nothing any worse than what Lilly Tomlin did... I know she did that too a long long time ago. As for Europe... well, I know the Asterix people tried to make strides... there's a pirate character in a crow's nest that has baboon lips and a bone through his hair... in 1980's Asterix movies, they changed it to a normal black guy, but kept the lips.