On September 2, 1874 former President of the Confederacy, Jefferson Davis, delivered a speech in Memphis, Tennessee denouncing a massacre of sixteen black men a week prior in Trenton, TN.
To say for any reason that the United States should not have entered the Second World War is ludicrous. We were presented with the very real threat of anti-Semitic fascism taking control of Europe and the world. We had to enter, to save the vote of the people and of society.
The United States did not want to enter World War I. It eventually entered the war in 1917 for two reasons. One was that a ship carrying Americans called the Lusitania was blown up by the Germans.