what are your thoughts on people who try to get certain things banned just because someone had a bad experience with them, even if those certain things really help other people and are for the most part non-lethal?

examples:
1. my friend pretended to be superman and jumped out a window to his death thinking that he could fly, superman kills!!!

2. taking this medication made me feel like shit and i dealt with headaches, insomnia, and nightmares, ban zoloft!!!

3. i got into a car accident and the seatbelt gave me a deep cut, seatbelts are dangerous!!!!