Why was california upsetting the balance of the united states

California's application for statehood caused an uproar because it was applying as a non-slave state. The slave states and non-slave states avoided conflict by always having an equal amount of slave and non-slave states, however, California would upset this balance.

one of the negative side effects were the economic losses the events of september 11th caused. many, many people lost their jobs as a result of a downturn in the economy after the terrorist attacks.