YouTube as a platform has been horrible for a while, with mass purges and content hiding being nothing new. But with the YouTube Android client update from a few weeks ago, it's now a horrible product. They used to have basic queuing when casting to a TV. Now there's no way to queue videos from your notifications.
It's like they want to force-feed you videos THEY want you to see, and make it hard for you to watch what YOU want to see!