I agree it could be more efficient, but isn’t there an argument that it’s better than all those houses firing up their individual cars to go to Target Or Walmart?

Depends, I usually stop at a store on my way home from work. Also, my neighbors tend to drive a bit more friendly then some of the strangers delivering random packages. The delivery trucks are always in a complete rush. I realize this is not just from amazon but it is the bulk and it is driving the behavior change.