Sounds like that is the deal Comcast made with your local government. Your beef is with your city/county for that sweetheart deal.
And tell me where you can live where this isn’t the case. I’ve lived in several Maryland counties and in 2 different PA counties since 2010 and there has only ever been one choice of cable provider. It’s not like I’ve ever had a choice to contract with one of several other cable companies (TWC or Charter Communications), in fact everywhere I’ve ever lived, going all the back to the early 80’s, it’s only been Comcast.