In the 1800s, britain and the united states had laws against unionizing mainly because they believed unions would cause a lot of violence. would be bad for the economy. would brainwash their workers. would reduce the work hours.

The answer is:

would be bad for the economy.

Seeing the example that unions and other organizations had done in other parts of the world, strikes and gaining rights over the owners, the government believed that it would be bad for economy to have unions. A union should empower the workers and help them gain benefits from their bosses.

d. dr. francis collins