There are scores like these,
"RC seems to be in a steep decline": https://www.rcgroups.com/forums/show...eep-decline%21
"Is the hobby dying?": https://www.rcuniverse.com/forum/clubhouse-190/11690921-hobby-dying.html"
"Just getting back into it, wow what happened to R/C?": Just getting back into it, wow what happened to R/C??
"Thoughts on the future of the hobby": https://www.helifreak.com/showthread.php?t=738812
(For the Canucks) "RCA for the decline of the hobby": https://www.rccanada.ca/rccforum/sho...d.php?t=601177
You can find similar for the UK.

Droners are crying as well,
"RC and FPV market is dead": https://intofpv.com/t-rc-and-fpv-mar...e-of-the-hobby
"This hobby is slowly dying": https://www.reddit.com/r/RCPlanes/co..._slowly_dying/