During the 1930s, the combination of the Great Depression and the memory of tragic losses in World War I contributed to pushing American public opinion and policy toward isolationism. Isolationists advocated non-involvement in European and Asian conflicts and non-entanglement in international politics.
No one will ever know for sure. I guess they all just hate kids.
Well in most of Europe it was illegal to have slaves and in the southern states such as Florida it was a normal thing and they would sell them in auctions and most would work in the fields with cotton or crops or would work in a house as a maid.