How does the incident with lula show that prejudice in the south was not just from whites toward black americans? in to kill a mocking bird,

The incident reveals prejudice in the sense that Lula opposed the idea of white children attending her black church. She even goes as far as stating that the whites have their own church, and so do the blacks. If Scout and Jem were African-American, perhaps Lula would have accepted them with open arms.

Hope this helps.

lol

today at the bank, an old lady asked me to check her balance. so i pushed her over.