You can never fully eliminate labor, that goes against the labor theory of value. Also robots cannot grease themselves & computer servers need maintenance. Just as the internet replaced a lot of hard print publishing, helper robots will free up people to work in less automated areas like building infrastructure.

This seems like circular logic. The credit card & transaction companies incentivize you to buy more & take a cut every time while attempting to raise the # of cuts they take. Like OP I bet you'd save even more when using cash as you'd buy less.