And just for the record, At the asifa, they did NOT promote filters they promoted banning.
One a side note there was a blogger Haredi and Proud, Many of the more modern bloggers mocked his views. After the asifa the blogger decided to shut down the blog. It was the modern bloggers who were most upset and came to his defense. They may have disagreed with him, but they liked to see his opinion and felt it needed to be presented.
Back to Youtube, yes there are videos that might be innapropriate, but youtube only puts out what you put in. If the Charedi crowd stops uploading videos to youtube, such videos as the Satmar Rebbe, Daf Yomi and other charedi oriented videos will disappear or be posted by people with more anti-charedi videos. I for one will miss those videos.
People claim about the Anti-Charedi bias, the way to fight it is to show stuff like that , It words for Chabad and they have good websites. It can certainly work for Satmar and BMG.