While I agree that people would probably revolt, I'm not sure if Comcast would listen or even care to be honest. The core issue I have with any capitalist economic policy is that it relies on companies to listen to pressure from the consumer and then actively do something about it. When company X has a massive stake in a given area, there's not much room for competition, if it's allowed at all. Granted, it's better than socialism and having the government run everything, but it is an issue I struggle with.
As for a choice of internet providers, I do have a Verizon air card but it's fairly slow and makes trying to connect to my work's network an absolute PITA. When your job revolves around patient care, time is important. I'm not sure if DSL is available in my area, I've never checked, same goes for a T1 line. I guess I wish there was a choice in ISP with regards to broadband and that way the local market could decide which one is worth the money. If they were both horrendous, say Comcast and Charter, at least I'd be able to choose the lesser of the two evils.
Like I said, I'm not really for net neutrality on the principal it's the government mandating things, but I feel like before repealing it other things need to be looked at and either repealed or modified.
With that said though, I'm not sure about consumer protection laws in the US. If Comcast screws me, I'm not entirely sure what, if anything, I can actually do. For instance, they placed a cap on my internet without ever giving me a notice. I didn't know about it until I got a letter in the mail saying next time I went over my cap, I had to pay some ridiculous price per GB. I called them and got nowhere, tried again and still got nowhere, and finally just gave up after the third time because it wasn't worth the 45 minutes everytime I called. To me, that's screwing over the customer since when I purchased the internet plan I was told it was unlimited. I know they reserve the right to change it whenever they want, but at the same time doing so is just poor customer service.