/facepalm
Nexflix generates the traffic, there is no question of that. They are the sender of the traffic, they generate it.
And you can bet your booty UPS pays your city and state a ton by being a transporter. But these analogies fail because it simply isn't how the Internet works. Unless you do it for a living you really can't comprehend it.
Wow, you really don't know how the internets work, do ya?
Netflix doesn't send out a darn thing until someone, like say a Comcast customer, requests it. It will just sit there and do absolutely nothing, generating no traffic. A request from someone, like a Comcast customer (who has paid for their internet connection), to Netflix is the inbound request (to Netflix). Netflix responds to this request by sending the requested data to the requester (like that Comcast customer mentioned above). That outbound data goes out on lines that Netflix fully pays for, just like you (or that Comcast customer) do at home!
Pretty easy to understand, right?
Comcast decides to throttle inbound Netflix traffic that their customers are requesting because it's so darned popular with their customers, complaining that Netflix is using up a bunch of their bandwidth. Any sane person can see that it's their customers who are trying to use the bandwidth that they have paid for and never get, but Comcast wants you to ignore those pesky little details. So Comcast holds their customers hostage, punishing them with throttling until Netflix pays to free them from their agony.
It's easy to see if you understand how these darned internet tubes are plumbed.