I don't think anything you do can reach that audience. The only thing that MIGHT alter their perception is trying it themselves and even then it takes a lot.
But outside of that niche group I think your videos very well demonstrate the issues in a fairly indefensible way. The save issue in particular is the worst as you never treat people's files/work with that much disregard.
Good point. If you post virtually anything online in front of an audience of any size, someone is going to vehemently or ignorantly disagree ("Puppies are cute;" "NO THEY'RE NOT"). I wrote about the problem here: http://jseliger.wordpress.com/2009/12/30/trolls-comments-and... but have noticed it elsewhere, too, and the larger the size of the audience, the more likely it is to have some number of vocal and ignorant members.