Frank Krygowski writes:

Many years ago, the eminent British researcher...


snip


Really, how safe does cycling have to be, and by how much do its
benefits have to exceed the tiny risk, before we say "Stop
worrying. It's safe enough"?


Safe enough for what? Safe enough to do? Don't we all do it?

Or, by "stop worrying", do you mean safe enough to not bother
trying to make it safer.