Well clearly you drank the Comcast kool-aid. Bandwidth is nothing like clean water supply, food, or generated electricity. It’s more like traffic on a highway. Sure, there is a finite amount of room on the highway, but until you hit that at any one time, there is room on the highway for more traffic.
It could be a problem if everyone was playing flight simulator at the same time but they are not.
This is only a problem if production does not increase dramatically, as it has for the last century. The reason it feels like there are insufficient working people is because parasites siphon from the resource distribution between more and more productive workers and their non working counterparts