1. Based upon what i have read labor unions were good because they tried to get better working conditions for all the workers. they also tried to get higher wages because they were not being paid enough to survive.
2. The Triangle Shirtwaist Factory was a sweatshop in which 146 seamstresses died because of the poor conditions in which they worked in and burned inside. These deaths could have been prevented if they had more things for fire safety like sprinklers fire escapes and if the conditions were not that bad.
3. Monopolists did not want unions because that would mean that they had to pay their workers more improve benefits, and improve working conditions. Union workers did not like scabs because they would do the same work as them for even less money so it did not help them.
4. Many factory and sweatshop owners disliked the vision of unions like the IWW because they were socialists and the monopolists did not like this because they wanted to be the only rich people and not share their wealth.