[Ressuder]

Those numbers are great and all, if you ignore human behaviour. Nobody's saying that wearing a helmet doesn't make you safer if you are in an accident, that's just a strawman.

The real issue is such things as driver behaviour changing around people with helmets making accidents more likely, or mandated helmet usage leading to fewer people choosing the bicycle as their mode of transportation, making things more dangerous in two ways: people choosing other options that are more dangerous than bicycling, and the fact that more bicycles on the road means less danger because 1. people get used to interacting with bicycles in traffic, and 2. there are fewer cars on the road.

You need to look at the broader picture. You can't just look at a fire escape where people gets injured because they trip down the stairs and conclude that the solution should be to remove the fire exit. Sure, it will definitely decrease the number of injuries in that fire exit but that's not really helpful, is it?