Market forces on a commodified, non-monopolized playing field should come up with all that innovation and bring us that charging cord faster and cheaper, and/or through a wider variety of curated market places and organic charging cord communities.

"organic charging cord communities"

I honestly cannot tell whether you're joking.

I tried to be a little concise. These days we mostly wonder which Amazon review is fake, and which product might be counterfeit. In the earlier days of the internet niche forums surprised with exciting and on-point information and initiative. Back to your charging cord example, a store could innovate and stand out by offering reliable off-brand alternatives for things like charging cords. Such innovation is less likely when a monopolist is holding on to most of the market share.

Back to my main point: The basic logistics of distributing products around the world should be equally good or better in a world without monopolists - theoretically, monopolies extract a surplus (https://en.wikipedia.org/wiki/Monopoly#/media/File:Monopoly-...), intuitively it's obvious ("why try when you don't have to").