I have found that most politicians have a poor understanding of what net neutrality is or they do not understand the consequences of not having net neutrality.
For instance, take a peek at these two articles on Net Neutrality that have come up in the past year.
The first one about Senator Mc. Cain.
http://www.foxnews.com/politics/2009/10/22/fcc-approves-proposed-net-neutrality-rules/
He states, "These new rules should rightly be viewed by consumers suspiciously as another government power grab over a private service provided by private companies in a competitive marketplace". He also states it will stifle innovation and kill jobs. He clearly does not have a coherent understanding of Net Neutrality as one of the goals is to increase innovation through the unrestricted, unfettered access to the internet. In this case, the government is providing deregulation to a market by disallowing private companies from restricting content.
Another Politician, Senator. Feinstein believes we should allow ISPs to restrict access to the internet to abate the spread of child pornography. In her words, changing the Broadband Technology Opportunities Program "allows for reasonable network management practices such as deterring unlawful activity, including child pornography and copyright infringement." While removing child pornography from the internet is a noble goal, she doesn't understand how much more harm will come of this through abuse of the policy. Halting the spread of child pornography can be combated through our legal system instead of giving ISPs complete control over what we can view.
The article can be viewed here: http://www.theregister.co.uk/2009/02/11/feinstein_stimulus_amendment/
While allowing ISPs to restrict our internet access would stop the spread of child pornography and could be construed as a government intrusion of a private sector that doesn't need it, consider China and Iran. The governments of these countries are completely against Net Neutrality in every way so they may control their populations by restricting anything that collides with their views. While our private ISPs might not have the kind of power these governments do, would you want our ISPs to be allowed that power?