Every group experiences prejudice among others who are not of the same group. That includes Whites. Blacks. Polish. Jews. Latinos. Irish. Asians. Filipinos. Italians. Gays. Transgender. Young. Old. Rich. Poor. Native American. Aleut. German. Female. Male. Genius. Left-handers. Low-IQ. Bald. Unathletic. Sports fans. Nerds. Unattractive. Tall. Short. Obese. Skinny. Hunters. Fishers. Animal lovers. Environment lovers. Religious. Non-religious.
You name it.
You cannot define a group that lives completely without prejudice, in the USA or in any other country.
You could argue that this is an indication of Walter Cunningham's severe poverty. He is very poor, and poor people did not have access to sweets or treats such as molasses syrup, so when he was offered it he deemed it appropriate to drench his entire lunch in it.
Answer: There was organized resistance from the Shawnee in the village namespace “Prophetstown”, so in effect, William Henry Harrison sent the troops to destroy the village.