It matters not which end of the pipe gets the charge. the user pays it.
To the extent that they continue to use Netflix, of course. But the risk here is of the network provider driving users away from Netflix by charging less for the bandwidth consumed by other 'favored' content - like that conveniently sold by the network provider.
As a consumer I'm happy to pay for my bandwidth, but once I've done so I want to use it for whatever I choose. I don't want my provider charging more for or slowing down content that I may choose.