What Youtube seems not to understand is...they serve at the people's pleasure. And even more so...they exist BECAUSE people create their product (content).
They're not too big to fail; they're just not annoying enough for mass exodus, yet. Classic frog in boiling pot.
Let's all remember - Youtube is a replaceable commodity. I would make efforts to download / store what videos you find irreplaceable from there (0.5-1T of hard-drive should store roughly 1500-2000, 20-30 minute youtube vids, at 720p@60), streaming them locally and intermingling with other sources.
In fact, I am working on an effort to do just that, by creating a local, SMB backed "channel" in my forked version of SmartTube