The publisher wouldn't have to do anything if the tech was built to protect works by default.
Youtube protects big hollywood with copyright strikes, but apparenty books are beneath protection.
It's your tech industry, stop blaming the publishers.
The silly thing about DRM for media is that, fundamentally, anyone can break it with manual effort, just by transcribing the words, or recording the video/music.
Besides, anyone who doesn't break DRM runs the risk that the vendor will take away access to the books they already paid for. It's happened before.
Who cares what people record for personal use. Copyright strike any books uploaded to windows machines from usb sticks and ethernet cables, with the same copyright strike system.
Then nobody will care when you time-shift or format-shift media you already 'own'.
There is a clear bias in protecting cloud software/some games and hollywood products. That bias has always protected the 'economic interests' and left the average joe flat on his bum.
If we live in a world where private conversations cannot exist, thanks to global survelliance, then your windows PC and copies of media, are subject to the same (bs) overseers. I didn't ask for this massive overwatch system, but now it's here....
And it's not the "tech industry" in the first place, it's fucking Adobe.
I have bought hundreds of ebooks and all were cheaper than the mass market paperback.