Because they never knew when one of their family members would be sold to a separate place. They had no way to stop things from happening.
Constitution or written document
An opinion question so no one gets a right or wrong answer. Just say you have pros and cons on the unit and pick a random part and say that it was the most memorable part.
Most likely due to the call for unity amongst p.o.c and women; as they were starting to be allowed to work more industrial jobs they normally couldn't. On top of this, there were also millions of jobs being created to help supply the front, generating massive productivity across the country and putting millions still reeling from the great depression back into the work force.