Er, no.
It's estimated that in 35% of fatal motorcycle accidents involve another vehicle turning DIRECTLY across the path of a motorcycle that is being being operated within the speed limit and within it's own lane.
That's ONE specific type of driver error accounting DIRECTLY for 35% of ALL motorcycle fatalities.
By my schoolboy maths, this leaves only 65% to account for all other types of motorcycle fatalities.
It doesn't account for any other type of aberrant driver behaviour, and supports the theory within the motorcycling community; that drivers are out to kill us.
Because they are.
The hoon=enthusiast argument is one being cleverly exploited by the mainstream media, and deliberately marginalises legitimate road users simply because they like cars, and lumps them in with every dickhead who ever did any stupid thing in a car.
It's an equation we need to spend more time opposing.