The ships are already making the trip carrying cars, furniture, medical equipment, and all kinds of critical things. The drop shipped trinkets basically hitch a ride for free.
Yep, thats the attitude thats keeps pushing the machine forward.
For example its the same as flying on planes. Number one worst offenders for C02 is frequent flyers, yet whenever you question anybody on it the argument is always "the planes are flying anyway why does it matter if Im on it or not".
> critical things
You miss the whole aspect of production and waste pipelines, which was kind of the point.