Of course they are garbage. But reading some of the remarks, stupid people are falling for it.
At this rate we won't be able to believe anything on the net. Talk about misinformation!.
Sadly, some people cannot discriminate between one source of information and another. These are usually lesser-educated, less sophisticated, and quite frankly, often less intelligent people, who simply take these videos at face value.
It is a variation on the "fallacy of print" phenomenon ---
"I read it in a book somewhere". Just because something appears in print doesn't make it true, but not everybody comprehends that.