You are correct Sheldon.
Downhill Racing
I consider this fad to be bad for cycling, and contrary to the spirit of cycling. It is effectively just a variant form of motorcycle racing, since the power is provided by the machinery that carries the rider and bike to the top of the run. Bicycling should be a human-powered activity, or it is not bicycling.
You didn't say it wasn't a sport, just that it isn't a bicycling sport.
My apologies for the tone of my post earlier. It was late, and I was tired, but I still wonder at why you hold this opinion? Having raced downhill myself, I can assure you that the cranks are not mere decoration. After racing XC for many years I used to think the same thing, but once I tried a race or two and saw how much sprinting power was needed to do well...my opinion changed.