This my take on the subject:
There once was a time when four lads from England played on a CBS TV show. After that every teenage boy wanted to play in a band. I was in a garage band and most of my friends were in a garage band. Everytime I walked down the street I could hear kids playing music in their basements or garages. When was the last time that you heard that????
Garage bands played at dances. I would guess that that does not happen any more.
Have you listened to a top 40 music statiion lately? Almost all of the songs have no musicians playing musical instruments. The music is computer synthesized. I wonder if kids even know what a real guitar sonds like.
When I was in High School the Fender/Fender (Beach Boy sound) was popular. Then came the Gibson/Marshall (Lead Zep sound) was popular. Now the Fender/Fender sound has returned, especially with Country musicians. This does note bode weel for Gibson.
There are very few young guitar/rock bands It's just a lost art form.
That all adds up to a big problem for the major guitar manufacturers.