though I agree that there could be many things wrong with science today. Your examples aren't the best fit

both asbestos and smoking at first appeared to everybody to be something good. And it for sure wasn't your anti-vax neighbour who proved they were dangerous because of "toxins" and "5G mind control implants"

non-experts today are at an incredible disadvantage when it comes to science simply because science got really complicated and interconnected. I believe this is also a part of why some people are losing their trust in it, it's hard to simply trust something you can't understand yourself