Its easy to take a pessimistic view on any sport, especially an individual one. And especially if you're completely detached from the main scene and off doing your own thing.
the reality is there is a lot more going on in windsurfing over here in WA than what there was a even just a few years ago. We have a state slalom series every summer, with an average of around twenty sailors racing.
We have the windsurfer LTs racing at MBSC every weekend of summer and monthly over winter (its probably the biggest fleet in WA by a long shot, 30 + sailors.) and they're out all the time during the week training and just having fun. MBSC is also going to play host to the LT worlds next season when covid restrictions are lifted.
The foiling fleet here is growing, theres more and more juniors getting into it (and showing up us older sailors (little feckers

)) and there is going to be racing this coming season.
this is not to mention all the regularly run events by the dedicated WWA volunteers like screamin leeman, cervantes windsurf challenge, and the State wave champs.
i don't mean to offend francone. I really hope to be doing as well as you at your age, but if you really think windsurfing is a dying sport, Then maybe you should get around more. Peli point in the middle of summer on a 20knot day, windsurfers are floating around waiting for the already surrounded picnickers to p***s off, so they can unroll 2 more sails where they were sitting. But if you rock up at say city beach, on a cold windless 5 knot winters day, you're probably going to be sailing on your own.