In other words, U.S. Internet providers are the worst at making sure their networks can meet demand, at least from Level 3. Instead of augmenting their network capacity (at costs that are “not significant,” according to Level 3), these ISPs are holding out for payments, either from middlemen or from content providers such as Netflix.
This is what we pay for. As consumers, there seems to be very little we can do because they are all part of the scheme.