TBH, I did google that and learned that it was mostly a lot of drummed up BS.
But this is the 2nd time you've attributed this gullibility to "boomers." I'll give you that my people (Boomers) are fairly technologically illiterate, as a group, but do you really think that it's only 65+ year-olds falling for these things that are the problem? It seems to me that plenty of illiterate younger people fall for this crap all the time, too.
People (of all ages) don't seem to understand that just because you put text over something to tell you what it is, it doesn't change the video. Watch the video! And that audio can be added, which is completely separate. (In this particular video, when some guy randomly shouts out, "The UK loves you!" I'm guessing that was added from file audio.) And, of course, on top of it, that video can be manipulated. In this particular case, the video basically tells you nothing. Police activity for no discernible reason, and a woman with a dog who is pissed off for being re-routed?