How does Lee use Miss Maudie's conversation with Jem and Scout the morning after the fire to illustrate the theme of racism?Chapter 8

Miss Maudie is outside in the cold when the children go and talk to her. When Jem finds that she has been out in the cold all morning trying to get her garden cleaned up, he takes her cold and dirty appearance in, and suggests that she hire "a colored man" to do the job for her. Jem does not consider that the colored man would be just as miserable out in the cold, nor does he suggests merely hiring "someone" to do it. It is indicative of racism that Jem would suggest that such an undesirable task be relegated to a man of race.