It's lack of competition in the US markets.
In deregulated markets when you have competition, if your Netflix doesn't work, you shout at your ISP who either loses you as a customer, or sorts their peering out.
Problem in the states would seem to be that if your Netflix doesn't work, you don't appear to usually have an alternate/comparable ISP you can switch to that will give you working Netflix.They've got you over a barrel, and see an opportunity to make money. Asking you for extra cash to make your netflix work is what they'd really love to do, but as they can't, they'll ask Netflix for it (who'll then ultimately have to pass this onto you).
Looking at it another way - if you had a 'net neutral' google connection available to you, you wouldn't care what other ISPs you didn't use were doing.
US ISPs are currently trying to have their cake and eating it - they want the regulation that prevents the competition, but don't want regulation that makes the connection 'neutral' (whatever exactly you think that means).