Answer:
Labor unions were created in order to help the workers with work-related difficulties such as low pay, unsafe or unsanitary working conditions, long hours, and other situations. Workers often had problems with their bosses as a result of membership in the unions.
Step-by-step explanation:
People are trying to put a stop to this so if they succeed the union activity would decrease. Above I put a simplified answer to your first questions.
Hopefully it helps!