Why did jappenneseAmericans face more discrimination during world war 2 than Italy?

Answer 1

Many were punished for the actions of the few. A few Japanese Americans sabotaged a tanker filled with gasoline by adding paraffin. This kept a number of American airplanes from having sufficient gasoline to defend the Philippines and caused the PT boats from having enough fuel. It greatly assisted the Japanese conquest of the Philippines. That led to panic. It made the rest of the country wonder what other acts of sabotage the Japanese would perform.

German Americans and Italian Americans in general did not have such ties to the mother country. They especially did not want to risk getting shipped back home!

Answer 2

Japan was the reason the US got into the war they attacked pearl harbor. So Americans were suspicious of Japanese Americans of being spy's.