Why is it important for these powers to belong to congress rather than to individual states

Goldman was in favor of the union, while Frick was against.

Explanation:

The Homestead strike was one of the biggest labor conflicts in US history and represented a battle against the top trade union representing technical professionals in the iron and steel industry and major steel companies.

In the face of the events of the strike Goldman was extremely in favor of the claims of the unions, stating that the working class, as an essential member of the means of production, should have their claims met, so that the work could be continued.

Frick, on the other hand, was strongly against the union and claimed that the working class was a weak minority and that minorities are the ones who should be bowing to the majorities and not the other way around.

Goldman's claims are presented in a more credible way, since without the working class the means of production cannot act, being therefore the most important class within the production systems and must be the most privileged class.