Feds said they would lose their slaves and there income and anti feds countered it by saying how bad slavery was and that they worked and made good pay themselves.
I think the labor force changed during World War One because it was not a bad time to be part of a moderate union that advocated against child labor and for improved working conditions and wages. ... On the flip side, unions did have to agree to regulations during wartime, such as their pledge not to strike, which would have stopped production and affected the war effort
It should support the hypothesis, whatever those hypothesis is