I, too, actually prevent youtube from every recommending any video provider twice.
But having seen reddit, which is already out of date, it don't think the hobby is declining at least in headcount - it's getting strange compared to what it was when I started 20 years ago, which is, of course, a different place than where it was 20 years before that.
There are a *lot* of apartment woodworkers who don't really ever go anywhere and I think I mistake talking to most of them because they don't really have much for expectations and just want paint by number.
There is an explosion in stuff just marketed toward social media promotion and affiliates, and a lot of it on a one-man scale if it's domestic and I can't even comment on the other glorified chinese copy stuff. There are some real shysters. the one-man scale stuff being like a specialty maker of just parts for tools, or even just tool handles. LN and LV seem to be selling stuff hand over fist, but you'll have trouble figuring out who it is - or I do, at least.