I feel you pain Pete, nice big lake made for sailing right in my back yard and no sailboats are ever out, just the Jet Ski's (sounds like 2 chain saw's hump'n) all day, every weekend.

In your location I might be tempted to buy a leaner and go play with them. You are never going to convince a bunch of reitred fat old men to get a boat where they might;
1. have to work
2. might get wet

They are content to cruise around at 4-5kts while swilling rummies, not that there's anything wrong with that. It's like Golf, with a better view and without the expensive sticks.