There are three groups of people opposed to network neutrality. 1) People who don't like government regulation in general, 2) Telecoms lobbyists and 3) People who don't understand what network neutrality is.

Obviously only the first are worth listening to, though the second are the loudest and the third are the most numerous.

And the issue with listening to the first group is that we have to do it in the right order. The principle of not having the government regulate is that the free market will take care of it, but there is currently no free market for telecommunications, in part because the government has given the incumbents access to eminent domain and a trillion dollars in government subsidies over the past century. So the order of things would have to be to first somehow have strong last-mile competition (e.g. more than 20 providers on average) and only then remove network neutrality.

The people who actually believe this also believe that last mile is not a natural monopoly. The proper way to answer it is to give them e.g. Nevada and let them prove it. Then once Nevada somehow has 20 independent last mile providers, we can do the same thing everywhere else and won't need network neutrality anymore. And if they're wrong and they fail, then we'll know for sure and the only people opposed will be the people no one should ever listen to.