I would add one more point, as a general policy you might want people to read more not less.

If ebooks can be distributed at no cost why make people pay for reading? It makes no sense.

This cannot be the right way to incentivize and provide income for writers.

I think Zlibrary and scihub (for scientific publications) are heroes: how do you think poor people get access to books? How do you get access to books when you are poor in a poor country?

For billions of people this is the only access to books. Otherwise they wouldn't read... What a loss for human kind!