some say this song shows racism...I am not really sure. any thoughts?

Black Betty had a child (Bam-ba-Lam)The damn thing gone wild (Bam-ba-Lam)She said, "I'm worryin' outta mind" (Bam-ba-Lam)The damn thing gone blind (Bam-ba-Lam)I said Oh, Black Betty (Bam-ba-Lam)Whoa, Black Betty (Bam-ba-Lam)