When was the last time you saw an ad for cigarettes?
Those second-order effects are easy to mitigate with sensible public policy. And it's not like we have to invent the solution from scratch — we've done it before, very effectively.
This is the correct reply to the constant "but whatabout" replies, that inevitably come up whenever you suggest regulation. "You've regulated bad thing X, but then they'll do Y!" So regulate Y! It's not like legislators only get one crack at a law. We should elect a government willing to move fast and iterate when loopholes are uncovered.
> When was the last time you saw an ad for cigarettes?
Today at the gas station on the outside of the pump and the store door.
> Those second-order effects are easy to mitigate with sensible public policy.
Regrettably, sensible public policy seems to be in remarkably short supply these days.