That isn't the fear. The fear is that you as an author will not be paid for your work of creating and publishing the material because whoever wants a copy of the book will go pirate it instead of paying you.

Luckily, for now, piracy doesn't seem to be making that huge a dent in author income as far as I know. Many people find it easier to buy their book with one click on Amazon or one of the other storefronts, or read through a bunch of books with a single Kindle Unlimited subscription.

I'm not sure how long that will last. Some authors are updating their business model to include subscription services like Patreon, where they sell more direct interaction, character naming rights, early access, and additionally gated materials to dedicated readers. This is probably good to secure their income stream in the long term.