The factor that increased is "Legislation that removed unfair electoral requirements"
In 1960 only 5% of African Americans were registered to vote
The development of the steel industry and the railroads was deeply connected. The benefits were going in both directions. The steel industry was providing the material for building the railroads. s the railroads were expanding through the country, new areas were becoming connected, some of which had the ore needed to produce steel. Through the railroad, the ore was easily transported to the manufacturing facilities, so more steel was produced. As more steel was produced, there was even more material for building the railroads, but also a cheaper material, sot he railroads developed even more. In this manner, both sides managed to contribute to their development and prosper greatly.
Justified means if something is right or that it's good or the right thing to do. The quote sounds like it's too much. So I would say no, it's not justified.
Every year the uzbek citizens are are forced by their own government to leave their regular jobs and go to the fields to pick cotton