Capitalism only works because of regulation, otherwise you'd have a society resembling a dystopian novel. In the 90s, there were many small ISPs, who were themselves run by enthusiast, so net neutrality was sort of implicitly preserved. In an age where many don't have a second choice for an ISP, net neutrality seems like the only way to at least somewhat preserve an equal playing field on the internet.
If you have a better solution, I want to hear it.
EDIT: Also, this whole U.S. right-leaning libertarian, (assumed based on your comment), thing of not wanting to involve the government in anything ever is so strange to me - you rely on them every day to enforce your property rights, ensure you have clean water in your tap etc. I understand that in many ways it can be very dysfunctional, but you have to evaluate on a case by case basis. Involvement in foreign military interventions, most would agree is pretty bad, firefighters are very good, so are roads etc.
Ultimately, if we accept that the government has a monopoly on the use of force, then we must also see that if something positive is to be destroyed by the 'free' market, then we must redirect that government monopoly to enforce that that doesn't happen.