Netflix is something like 30% of internet traffic and it's mostly one way. They are so big they produce more traffic than many entire ISPs.
They may be so big that no ISP can peer with Netflix's ISP without disturbing this balance.
Is it possible that the solution is that Netflix basically are forced to have multiple ISPs and connect directly to many networks?
I can see that this could lead to problems as has been mentioned elsewhere in this and many other threads, but maybe there have to be exceptions to the general rule.