It seems to me, based on the data, democrats should be more interested in banning motorcycles than guns. 
During the study period, 26 831 people were injured in motorcycle crashes and 281 826 injured in car crashes. People in motorcycle injuries were younger, with a mean age of 36 years, and more likely to be men (81%) than those injured in car accidents. Compared with car accidents, motorcycle accidents caused 3 times the injuries, 10 times the severity, 6 times the medical costs and 5 times the deaths. People with injuries from motorcycle crashes were much more likely to be hospitalized and to be admitted to the intensive care unit (ICU) compared with car crash victims.
There will be a bunch more of this sort of thing, simply because insurance, with socialized medicine, is a 'public cost'.
"The main results of our study were that each motorcycle in Ontario causes 10 times the severe injuries, 5 times the deaths, and 6 times the medical costs of each automobile
I think people ought to look at the numbers and not just the conclusions.
Keep in mind the study group only included those who presented with injuries after an accident.
Of course, it stands to reason that after being hit by an automobile or truck or colliding with a fixed object, a person surrounded by a metal box will likely suffer less severe injuries than someone who is straddling their vehicle and unprotected, except by leathers and a helmet (Yes, Canada has a helmet law).
However that does not excuse statistical blather like "
each motorcycle causes ten times the severe injuries", especially when we consider we don't know how many of these injuries to motorcyclists were caused by the improper and/or illegal operation of an automobile or truck, in the cases where a collision was between the motorcycle and an automobile or truck.
Apparently, it is being assumed that the causative factor is the vehicle of the injured person, regardless of fault or action of other drivers.
Perspective for Americans:
According to the Consumer Products Safety Commission (CPSC), there are approximately 15,000 golf cart related injuries requiring emergency room treatment in the US each year.
http://www.technology-assoc.com/articles/golf-cart-hazards.htmland
According to the U.S. Consumer Product Safety Commission (CPSC), more than 131,000 people were treated in hospital emergency rooms, doctors' offices, and clinics for golf-related injuries in 2015.
https://orthoinfo.aaos.org/en/staying-healthy/golf-injury-preventionNow, that's just one low contact/impact flavor of 'staying healthy' (golf) that racked up 131,000+ ER visits, If you add in all the other sports, knee/shoulder surgeries, etc., well, motorcycles might have seemed like a boogeyman, but I'd bet there is worse....
