I like the sentiment of that letter and a lot of it is really clear and well-spoken.
On the other hand, a bike causes one twenty-millionth of the dmage of car only if no one is actually riding the bike. When I get on my bike, it causes 2401 times the damage of that caused by the empty bike cruising down the road without me.
@mick, yeah, there’s something like a 1/160,000 ratio between a bike and a car (not considering speed) and a 1/10,000 ratio between a car and an 18-wheeler truck. Which means that, uniformly, light road users subsidize heavy road users. Bikes pay more proportionately than motorcycles, motorcycles more than cars, etc. Nobody pays their fair share, and if they did it would put bus and truck companies out of business.