Why Labor Unions were not successful

No, it was not successful because Source H the government basically made it illegal to go on strike, which made Labor Unions almost pointless. Next there was Source G, which said that at the strike of Homestead most of the Labor Union workers died while on strike because of the violence, which leads to the general public thinking that Labor Unions are no good as well. And plus, why go on strike if you are likely to get hurt and not be able to support your family anyways? My last supporting source is Source D because it explains the disappointments of industry back then because the Labor Unions weren't really taking an affect on industry yet. The invention of the assembly line made it so that skilled workers got replaced by cheaper, unskilled workers and a lot of workers lost their job from being replaced by machinery.