That's brutal. That said, you're not necessarily contradicting the OP. They were talking about cities demanding helmets via helmet laws. Whereas you (I think)

That's brutal. That said, you're not necessarily contradicting the OP. They were talking about cities demanding helmets via helmet laws. Whereas you (I think) are recommending individuals use helmets, and also bicycle infrastructure. OP isn't saying it's bad for an individual to wear a helmet. They're saying it's a bad requirement, because making helmets required will take marginal cyclists off the road. And fewer cyclists leads to more accidents like the ones you had, because drivers aren't used to cyclists.