It is amazing tech.
They are also using plastic bags which will destroy the earth.
Robots will rise up one day and will not fill your grocery order and all humans will die, well at least liberals who will be trapped inside a Amazon grocery store when the robots disable the card reader and the liberals cannot figure out how to open the door then the robots will process the liberal into soylent green to be used as fertilizer somewhere.
This is how the BORG started out as.
Grocery bots in a galaxy far far away.