And?

Where did I say anything about not needing early detection(1) or anything negative at all?

I'm giving actionable advice that you can follow right now at this very moment until we have other methods of prevention. That's what we got and it's easy to implement(2) and mildly effective.

(1) Though that's another can of worms considering there's cases where routine screening of asymptomatic individuals at low-to-average risk of a disease can actually do more harm than good, but that's another topic. Screening certainly can also be beneficial too, I'm not hating on it as a concept.

(2) Provided you aren't already a smoker. If you are, it can be difficult to quit, obviously.