Truth is, there's precious little I need from Amazon, let alone need in a hurry. It mostly comes down to wants, supplies for projects which are themselves entirely optional, etc. As such, I will let a "want" item sit in my cart for weeks until it is joined by enough other want items to make the $25 or $35 or whatever arbitrary limit they have set to erase the arbitrary $6.99 small order shipping fee.
I don't like to think about how much I have spent there, and elsewhere online, for things I don't really need. I do like to take arbitrary months off from buying anything optional, kind of like intermittent fasting - gives me time to finish out things I have started, clean up stuff I have abandoned, do things that don't require "stuff."
If I am typical, the world could boycott over 80% of their amazon.com purchases without even bothering to get the stuff from elsewhere, and 80% of the remaining 20% could be sourced elsewhere, perhaps for 10-20% higher cost, perhaps not even that.
Well, that's a big component: how efficient / environmentally destructive is the mining?
Also, as electricity consumption in areas like China, India, Africa increases, they're going to start needing big multiples of the amount of copper used in the US/Europe/ANZ to-date.