Mayella Ewell is a product of her upbringing, but she is not a racist. Her father is a coarse, small-minded man. He does not consider her needs, and he is as racist as they come. Even Atticus, who is generally empathetic, does not have anything nice to say about the Ewells.
Atticus said the Ewells had been the disgrace of Maycomb for three generations. None of them had done an honest day’s work in his recollection. (ch 3)
Atticus comments that Bob Ewll “spends his relief checks on green whiskey” and “he’ll never change his ways” (ch 3). When asked if he is Mayella’s father, Bob Ewell responds this way.
“Well, if I ain’t I can’t do nothing about it now, her ma’s dead,” was the answer. (ch 17)
The Ewell house is described as horribly dirty and rough. Bob Ewell does not work, and does not try to make life easier for his family. Mayella, on the other hand, seems to have avoided the Ewell curse.
One corner of the yard, though, bewildered Maycomb. Against the fence, in a line, were six chipped-enamel slop jars holding brilliant red geraniums, cared for as tenderly as if they belonged to Miss Maudie Atkinson, had Miss Maudie deigned to permit a geranium on her premises. People said they were Mayella Ewell’s. (ch 17)
Mayella is clearly not racist. She struck up a friendship and even a romantic association with Rom Robinson. She was lonely, and she was attracted to him. She did not care that he was a black man. It was not until she was backed into a corner that she accused him of rape, because of her father.