(relatively low stakes, as in like not 9/11 or JFK level)
Mine: plastic straw (and now plastic cutlery) ban initiatives are directly funded by petrochemical companies. Plastic straws are one of the most common and useful types of disposable plastic an average American encounters every day, so banning them causes people a huge inconvenience and tarnishes the idea of other green initiatives (that might have actual teeth) as more nanny state "not allowed to have this"-ery (also has the side effect of making gullible libs think they're actually doing something to help the planet by using a reusable straw while they get their plastic container of meat products)
I've never been to an optometrist but I've seen psychiatrists do shit like that. I have enough knowledge of chemistry/pharmacology that I can explain why I don't need what they want to prescribe, then they realize they can't fuck with me and they start prefacing every sentence with "I might be wrong about this" or "It's just a suggestion" because they know they can't fool me. I can't imagine what people who haven't gone out of their way to learn about that stuff have to experience because of these doctors. It's disturbing that I need to flex about my chemistry knowledge to prevent doctors from giving me expensive meds I don't need.