The story is alright. The way they drew the character, definitely not alright. And you know the lovely associations racists make between black people and spears.
Could have been a cute animation about a kid biting off more than they could chew. And a hapless lion and a bird that takes not shit. It's a shame they had to shove the nastiness in there.
What's sad about the racist aspect of the show is that the depiction of a child at play in this show totally mirrors the behavior of children when they get a bug catching net. It's a Merrie Melodie, so there's no speech or inner monologue that is forced upon all children's shows day. Just a kid being a kid.