Those regional monopolies you mention are granted legal rights to the physical property they use to obtain those monopolies. In the case of Comcast they have physical infrastructure that they were granted permission to place onto public and private land. While you may not get to vote for who runs Comcast, you definitely have the option to vote for the people that are involved in the decision-making process that grants those allowances to companies like Comcast. Sounds to me like the issue is government deciding who gets to be a monopoly. And that's why I said the proper course of action is to change the law/policies that are causing the problem.