Very funny, duneman!
Two of the French riders who won world championships in the '80s were Jackie Vimond and Michele Rinaldi. I think it was Vimond who set up the school, and Rinaldi owns one of the most successful GP teams, Rinaldi Yamaha. Of course, Jean Michele Bayle was the best rider in the world at his peak in '91 and one of the best of all time.
I've had the pleasure of vacationing in France a few times and they LOVE dirt bikes. Basically, motorcycles are far more popular than they will ever be in the USA, so more of their top athletes will get involved.