Very simple. The people being injured daily are from vehicles that speed, jump lights, on the phone, no MOT, over the limit. Many of which are easily visible when out and about. You chose to ignore all of those and isolate your advice for a cyclist that is very unlikely to hurt anyone other than herself.
Your are trying to tell everyone it's because of the danger she poses. You are wrong. You either realise this and are picking on a soft target or you don;t realise this and are getting all het up by the person less likely to hurt anyone than the dozens of lawbreaking vehicles you saw today.