There are two different ways of looking at the issue, depending on how you see the Internet and internet service providers.
Is the internet primarily a product/service that is being sold to people?
or
Is the internet primarily a means of access to information and market places?
If you see the internet as primarily a product or a service that is being sold, then it only makes sense that the companies who provide the product / service should have control over what they sell.
Further, it is pretty well established historically that a free competitive market place is better for the consumer while heavily regulated marketplaces tend to be worse for the consumer. This is particularly pertinent since the regulations used for Net Neutrality were originally intended for public utilities and we have historical examples of what happens when something like phone service was regulated under those rules as opposed to being left to a more free market place.
Regulating telephone companies under those regulations was basically a failure and was terrible for the consumers. People were stuck with no options, expensive service, and generally low quality service.
Removing those regulations gave us the vibrant competitive market we have today for phone service. People now have lots of options, we have competitive pricing for a wide array of service options and service is generally pretty good quality.
There are some very valid arguments here that have historical merit in that we have actually seen them work themselves out in real life.
Now, if you view the internet primarily as a means of access then the picture can change rather dramatically. Imagine, if you will, that the internet is like a system of roads by which consumers get to the various retail stores that they want to shop at.
Now imagine that those roads are controlled by a private company and they can, at their discretion, change the speed limit on any of the roads or install speed bumps etc.
Then let's say that the road company decided that since there was lot's of traffic to Walmart, they would install speed bumps on that road, and open a special lane with no speed bumps, but charge an extra toll to drive in that lane.
Or worse, imagine that the road company also had members that had shares in Target stock. So in order to boost Target, they make the roads to Walmart slow, bumpy, and generally poor quality.
Perhaps worst of all, imagine that the road company just doesn't like your business because maybe they have political, religious, or other ideological disagreements with you. As a result they do everything they can to slow down traffic to your business and deny you access, as well as denying consumers access to you.
Obviously these scenarios are pretty bad.
Now here is the real rub. Both of these ways of viewing the internet are accurate. The internet falls into both categories.
This means, it is very likely that excessive regulation really will and already has restricted the expansion of the internet marketplace, hurting consumers primarily by keeping prices high and restricting the service options available to them.
It is also true that the internet is somewhat unique in that it is primarily a means of access to an extended marketplace, both of ideas and commerce. It is pretty unusual and understandably dangerous to give private entities unrestricted control over other people's access to marketplaces.
The real question is, what is the best way to secure ease of access, and security of access for both the consumers and providers of content in the internet marketplace?
Is it better to rely upon the government to regulate access? This puts ultimate control in the hands of government bureaucrats and elected officials. The people only have secondary control in that they can apply pressure to the government.
or
Is it better to rely upon the free market to regulate access? In many cases this does allow much more direct control for the people because the free market is essentially a direct democracy in which people vote with their dollars.
I'm well aware how many people have extreme distrust for companies like Comcast and Charter. I'm one of them. Charter has screwed me over more than once. I'm also aware that currently there is very limited competition and few real options available to consumers in this space.
I know that under government regulation, this situation won't change much. Yes I won't have to worry too much about Charter or Comcast screwing with my Netflix access, but I also know that I will likely never get better options than the somewhat crappy ones I currently have.
I also know that letting the regulations go, and surrendering Internet Access to the free market will yield uncertain results. It PROBABLY will eventually bring in more competition which will likely restrict the ability of Comcast and Charter (and others) to screw over their customers etc.
So the issue is essentially a trade off and a bit of a gamble. Neither side has perfect options, both sides have problems.
The primary issue is ensuring access to the e-marketplace, but it's not a cut and dried answer that government regulation is actually the best way to do that.