Americans reacted in a variety of ways to the new industrial order of the late 1800s and early 1900s. Some Americans reveled in the new order and justified it while others tried to fight against it.
Many of the people who benefitted from the new order sought to justify it. They argued, for example, for the idea of Social Darwinism. They argued that their wealth came about because they were superior people. They also argued that the new order would allow the cream to rise to the top and would, eventually, improve the nation as a whole.
On the other hand, those who were harmed by the new order tried to oppose it. A major part of this opposition was the labor unions. These groups formed to try to fight against the domination of the owners. They wanted more of the wealth created in the new industrial order to filter down to those who worked in the factories.
There were other responses to the new industrial order, but these are perhaps the two most prominent and important of them.