They blamed it on industrial capitalism.
The conditions were horrible for example it was really dirty, overcrowded, dangerous and also unhealthy
Factories begin because of the working conditions.
The working conditions were horrible...yah..
They wanted better working conditions.
Answer is below in Expert answers box.Expert AnswerKarl Marx and Friedrich Engels blamed the horrible working conditions in factories on greedy capitalists, the suppression of trade unions, and lack of government support of workers. In England and Germany peasants were forced from the farmlands by rich nobles and capitalists. The people flowed to the cities to seek factory work. In order to support their families, children were used as workers. This placed a terrible burden on poor working families.
Labor unions partially arose because working conditions were absolutely horrible up until recently, with workers laboring for extreme lengths of time in horrible conditions often in factories consumed by fumes, with workers exposed to what ever they were creating. So basically, one condition that cause the rise of labor unions, was that working conditions were so absolutely horrible.