Yeah, let’s just keep smoking cigarettes, using leaded gasoline, and spewing carbon into the air until we know for sure how bad it is.
You’re forcing a direct comparison with one category, but how do I know that’s the correct comparison?
I won’t claim to follow it closely but every one of these I’ve seen shows a small impact to a small subset of vulnerable users. That’s a far cry from other things that are universally damaging.