The cry for "Net Neutrality" is just another "it's all about my needs" authoritarian whine clothed in faux populism. Few of the 'outraged' give a hoot about other's services, property rights, the market, the appropriate role of the state, or regulatory effects. Tney really don't need a theory as to the wisdom or propriety of NN regulation because users think that its their "right" to have equal purchasing power, or the ownership of, any fancy of their choice. Some people think they have a right to, say, equality in their TV, or a car, or housing, or food, or college education, or a new kitchen. And now, with the advent of the Internet, they have added broadband to the list of "equality essentials" that have to be extracted from the collective purse for their own wants.
So let's get serious:
This is about is basic economics, rationing scarcity via price. It's a service and for all the hair-pulling it is just like any other service - you get what you pay for.
Look, anyone can use coding and communications protocols on the internet. But the physical means of accessing the internet is not free. The servers, cabling, and other equipment of content and service providers, and of users, must be purchased. ISP's, in particular, are those who have driven the creation of new and vastly improved infrastructure. The old days of the ATT monopoly with 300 bits/second data lines is dead - today we enjoy high speed DSL and Cable and wireless broadband because the ISPS invested in their infrastructure (and we will see continued advances as companies like Verison roll out a 140 billion dollar new fiber cable networks that are many times faster).
Their infrastructure is their business, and it they may profit from it as they see fit. The state should not have the power to dictate how ISP's use their own capital investment to serve their customers. And the idea that the ISP's should maintain a "stupid" Internet of "dumb pipes" that does not distinguish between the costs of high volume providers and their users is absurd.
Unfortunately, when special business interests realize that they may have to pay for their high volume over others infrastructure, or face slower service, they gin up the gullible left about their "rights" and then run to the government to demand that the ISPs to provide a subsidy through the canard of "neutrality".
"Net Neutrality" is no more sensible claiming that all forms of postal mail should be "dumb" pipes of same time to delivery, prices, and volume.