The response that best describes Pierce Butler’s main idea about the Three-Fifths Compromise is:
"Butler wanted enslaved people to count as less than whole people because that meant enslavement could continue."
Pierce Butler was a major proponent of the Three-Fifths Compromise, which allowed states to count three out of every five enslaved individuals for purposes of representation in Congress. This compromise was aimed at preserving the institution of slavery while also providing Southern states with greater political power.