I hate the big ISPs too. Everyone does. But the solution to them is competition. Not government regulation. Just remove the stupid laws that make it illegal for rival companies to lay cable in their territory.
You are hoplessly naive. In order to compete with incumbent ISPs you have to have massive resources. If you start with small, local deployments, the incumbents will make local price cuts to drive you out of business. Even if you have the resources to make deployments across most population centers in a short time, the result will be lower prices and no profits. If you just built out, your equipment costs will be much greater than incumbents.
The only way to get competition is to force unbundling of local loops. This means more regulation.