Even if you adore the principle of Net neutrality, it's reasonable to demand that federal regulatory agencies stick to what Congress authorized them to do. Otherwise you have illegal regulations and bureaucratic turf-grabbing that will not treat the Internet well. Remember Hollywood's successful efforts to lobby the FCC to impose "broadcast flags" on computers by bureaucratic fiat? A federal appeals court correctly struck it down as exceeding the agency's legal authority, as I wrote here in 2005: http://news.cnet.com/2100-1030_3-5697719.html
That same appeals court is currently considering the FCC's Net neutrality regulations. BTW, it's also the same court that slapped down the FCC's first attempt to impose Net neutrality regulations without legal authority in 2010: http://news.cnet.com/8301-13578_3-20001825-38.html
If Net neutrality violations become an actual problem, there's no shortage of publicity-hungry politicians in Congress (hi, Ed Markey!) who will hold hearings and push legislation forward. Obama will happily sign it. Until then, other government debacles including NSA domestic surveillance and Obamacare should make us wary of federal agencies exceeding their legal authority -- especially after Congress considered and rejected a law that would have given it to them in the first place.