Perhaps a better way of saying it is "Bikes are dangerous because they're vulnerable"?
This article basically confirms what I have thought for a while now,
that is, that a significant percentage of SUV drivers buy them for the "perceived" feeling
of safety it gives them. Which is another way of saying they're scared, to often scared
drivers are that way because they're crap drivers. So , now we have numerous crap drivers
out there in vehicles which are more dangerous to others.