We desperately need to break up ISP monopolies and enact strict net neutrality regulation and bandwidth (even latency/routing) guarantees. The idea that a single ISP is in a position to charge both YouTube and its customers is bizarre. By any basic reasoning, an ISP that doesn't enable access to YouTube should be out of customers within a few months. That this doesn't happen is testament to the broken market surrounding internet access, and a bad sign for the fights that await us.
(Google needs to start naming and shaming the ISPs that do not want to peer with them on reasonable conditions or with sufficient capacity when they detect bad performance on YouTube. They have been doing this locally, e.g. they delisted french news sites from Google News when these lobbied for protectionist laws, and they have been stating the parties that forbid them from showing copyrighted content, e.g. the GEMA in Germany.)