You are stating that "Net Neutrality" will magically create competing ISPs in places where only a duopoly of <Cable Company> and <DSL Company> currently exist. Please explain to me how net neutrality will somehow affect things like local municipalities granting ISPs local monopolies. Or how "net neutrality" will allow new-comers to overcome the initial regulatory and capital investment hurdles to setting up a new ISP.
What you're missing is the "unbundling" is talking about forcing (e.g.) Comcast to lease it's "last-mile" lines out to competing ISPs. This means that competing ISPs don't need to invest in "last-mile" infrastructure. (If you don't understand what "last-mile" means, it would behoove you to look it up).
Net neutrality does play a part here in that if Comcast partners with Netflix, they could provide a better Netflix experience than a smaller ISP without bargaining power, but the lack of ISP competition is arguably a bigger problem and calling out "Net Neutrality" as the solution to all Internet connectivity woes doesn't help.