It's kind of chicken and egg. Everything ends up on YouTube because people don't have the bandwidth to self-host video, so then people go to YouTube to look for

It's kind of chicken and egg. Everything ends up on YouTube because people don't have the bandwidth to self-host video, so then people go to YouTube to look for videos. If more of them were self-hosted then the default search method would be one that finds them everywhere. At this point there is more work to be done than only getting people more bandwidth in order to get there from here, but one step at a time.