I do not get it. If one posts a youtube video with the comment section disable, it doesn't mean that one killed the debate. You have the WHOLE internet to share your ideas on the topic: you can upload a video to not only youtube, but vimeo and other media sharing sites, you can discuss it here on the Escapist Forum, you can blog about it and so on...
It seem that people get personally offended by that woman's action of not listening (which is not totally true, cause you can still try to PM her or send her an email), and totally dismiss REAL debate: objectification of women on mass media.
Even if she was just dismissing opposing arguments to her point of view, it shouldn't matter that the one that 'started' this instance of the debate listen to what you have to say, but rather that the debate itself goes on...
I don't need to talk to Richard Dawkins to discuss his ideas on secular societies or talk to William Craig to disagree with his view on the origins of the universe and god, but it is important to think about those issues and address them in some way.
Saying one has killed the debate by only disabling comments in a video is, IMO, ridiculous.